Customer Satisfaction is Key no. 24 | october 2014 | Hauzer for You 2 no. 24 | october 2014 | Hauzer for You Content 3 Jeroen landsbergen, CEo 4 Cooperation with Fraunhofer iST 7 innovative DlC Coatings 11 Turnkey Tool Coating; more than Just Coating 14 power Supply maintenance 15 Customer Satisfaction research 16 meet us… Cover photo: Boy Lankreijer maintains a Hauzer Flexicoat® 1500 machine Colophon Publisher: IHI Hauzer Techno Coating B.V. No responsibility can be accepted for the correctness or PO Box 3057, 5902 RB Venlo, The Netherlands completeness of the statements made, especially in the case of Tel: +31 77 355 97 77 external contributions. The opinions expressed in this magazine Fax: +31 77 396 97 98 do not necessarily reflect those of IHI Hauzer Techno Coating B.V. [email protected] We reserve the right to make technical changes. www.hauzer.nl Reprinting or reproduction of any kind is prohibited. Exceptions Editor: Désirée Driesenaar to this rule are possible only with the prior written permission Tel: +31 77 355 97 15 of the publisher. [email protected] Design: Creation Station, Roermond © IHI Hauzer Techno Coating B.V., all rights reserved. 3 Technology & Cooperation Since the 1st of July, the moment I started as CEO of Hauzer, I have received a lot of positive feedback from our customers. I am glad to hear that there is an overall feeling of confidence that Hauzer will continue on the road of technology and cooperation and make it a success. The summer has In the tool market we have shown that we can supply more been characterized by intense conversations and discussions, than just the coating machines, which might especially be after which we are resolutely ready for the future. beneficial for starting job coaters. Our strategy towards job coaters has not changed and we are glad that more and At the beginning of 2014 we have seen a slow start for tribo- more job coaters find their way to our tool coating solutions logical applications, but at this moment we receive signals and grow their business with our machines. Furthermore our from the market that there is a need for extra production CARC+ technology has received a lot of positive publicity and capacity and new technologies. We will keep you informed more and more tool experts are enthusiastic about its perfor- about our research and development activities via this Hauzer mance. Last but not least, we put a lot of effort in the older for You magazine. The articles about doped ta-C coatings and equipment that is still functioning in the market. Upgrading our microwave technology are some examples of new oppor- can be a good solution to make older systems up-to-date tunities. Satisfied customers are at the core of our business, again, but also trade-in is an option, so please do not so we are always interested to receive feedback. This year hesitate to contact your account manager to discuss your we have made a project out of it. We are glad that so many specific situation and wishes. I wish you all a good read. customers gave us their honest opinions and we will defiJeroen Landsbergen, CEO nitely use the answers to further improve our performance. Hauzer Sales Team Tribological Europe AmericaS Asia Geert-Jan Fransen Geert-Jan Fransen Geert-Jan Fransen Yongwen Xia Bruce Li Masaaki Takizawa coatings Tool Michiel Eerden Michiel Eerden Michiel Eerden Yongwen Xia coatings Pieter Segers Pieter Segers Bruce Li Masaaki Takizawa Decorative Pascal Evers Pascal Evers Yongwen Xia Masaaki Takizawa coatings Bruce Li Geert-Jan Fransen Michiel Eerden Pascal Evers Pieter Segers Bruce Li Yongwen Xia Masaaki Takizawa product manager product manager sales manager sales manager sales manager sales manager sales manager China China Japan 4 no. 24 | october 2014 | Hauzer for You Cooperation with Fraunhofer iST Carbon Coatings Suitable for High Temperature Applications By Birte Horn, Dipl.-Wirtsch.-Ing., Graduate Mechanical and Business Engineering at Hauzer and Fraunhofer IST research and development and the resulting implementation of coating innovations are ongoing tasks. in vertical and horizontal collaborations Hauzer shares its knowledge and builds on its strengths with the properties of these coatings, which partially are applied in targeted and problem-solving results. A cooperation practical tests, should be further characterized in order to get more information about their specific tribological behaviour. project of Hauzer with Fraunhofer institute of Surface Wider Range Engineering and Thin Films (iST) shows that ta-C To extend the investigation results of 2013, further tests included the characterization after tempering at 450 °C – coatings were found to resist temperatures up to 500 °C as well as high temperature tribological tests at test temperatures up to 500 °C. Also a wider range of doping ma- 500 °C in model tests. terial had been considered. Test conditions were the same or similar to conditions of tests in 2013 (2-fold rotation, 30 mm samples with base roughness of 15 nm, argon etching, coated Adapting to increasing requirements of the automotive in PVD, PACVD or hybrid processes, polishing of rougher ta-C industry, materials have to resist higher loads with respect to samples to a smoothly levelled average roughness of less developments in charging and downsizing of engines as well than 20 nm). Within a screening all coatings had been analysed as lower viscosities of oil – Hauzer for You magazine reported in order to gain knowledge about their properties up to 500 °C. in September 2013. Doped a-C:H-coatings showed their The special task was forwarded and set into a graduation ability to resist wear and friction in coating analysis of tribologi- project at Technical University of Braunschweig. The outcome cal tests at room temperature after tempering at 450 °C and of this project is an interdisciplinary study carried out in the in high temperature wear tests at test temperatures of 450 °C. scope of technical and economic aspects. A basic charac- These results were reproduced and assured within the terization screening of 13 different coating types identified examination. Based on the promising results that had been the higher potential coatings, which were then tested in high found last year, hydrogen-free and hydrogenated Diamond temperature wear tests. Like Carbon (DLC) coatings (a-C:H and ta-C) were doped with tungsten, silicon and also chromium. Concurrently, several Experimental Tests a-C:H coatings (doped and non-doped) were tested to com- In commercial vehicle engines at specific operating points a pare the coating types on the one hand. On the other hand higher pressure can induce increasing temperature stresses. 5 Micro Hardness ta-C:X 10000 The screening of doped ta-C coatings showed again the 9000 superior ability of tungsten-doped carbon films in resisting wear and friction. In all tests the tungsten-doped coatings 8000 passed with excellent results. The composition of ta-C:W 7000 is constant after tempering at 450 °C and 500 °C. This was 6000 as deposited 5000 4h in 450 ˚C 4h in 500 ˚C HVpl also found for all other doped and non-doped ta-C coatings, but with different residing layer thicknesses. Composition 4000 tests were done with the bulk method and reassured with not tested 3000 the thin film method within an Electron Probe Micro Analy- 2000 sis (EPMA). 1000 Low Friction; Low Wear 0 Micro hardness of the ta-C:W layer, tested with 20mN averaged over 10 set points, had been determined with 7500 HV after tempering at 450 °C and with 6000 HV after tempering rc) rc) rc) rc) rc) (A (A (A i (A r (A C C H S C : : : C C ta C C:W tatatata- Picture 1: Silicon-doped ta-C coatings were determined with constant micro-hardness behaviour over the tested temper steps up to 500 °C. at 500 °C. Other ta-C films behave in a similar way: Five out of six ta-C varieties were determined with micro hardness of more than 6000 HV after tempering at 450 °C. Results of 32 mm/s sliding speed). On bodies and counter bodies a 6400 HV and above had been determined after tempering strong reduced wear was found (picture 3). The wear track the mentioned samples at 500 °C. of ta-C:W (after 450 °C and 500 °C) shows extremely low Silicon-doped ta-C coatings were determined with the wear. This was also found for the counter body. The wear highest micro hardness results and constant micro hardness tests of ta-C:Si and ta-C:Cr showed a slightly higher wear behaviour over the tested temper steps up to 500 °C (picture on the respective counter body. This was not found for the 1). Friction coefficients of ta-C:W were found to be the low- wear track, the non-tempered coatings showed the same est of all ta-C coatings (picture 2) from arc deposition. Tests excellent results on the wear track. Only a slight increase in had been done within a standard test setup (3N load, dry the wear of the counter body was determined after temper- against 100Cr6 ball, room temperature, 1h-duration, ing at 450°C and 500 °C (pictures 4 and 5). µ Friction Coefficient ta-C:X High Potential 0,600 Coatings All the mentioned doped 0,500 and non-doped ta-C coat0,400 ings were produced with arc deposition technology 0,300 as deposited 0,200 4h in 450 ˚C 4h in 500 ˚C 0,100 0,000 c) Ar ( C ta- not tested µ1 µ2 µ3 c) Ar ( C C:W ta- µ1 µ2 µ3 rc) (A r C:C ta- µ1 µ2 µ3 rc) (A i C:S ta- µ1 µ2 µ3 C:H ta- rc) (A µ1 µ2 µ3 Picture 2: Friction coefficients of ta-C:W were found to be the lowest of all ta-C coatings; µ 1-3 show the running-in behaviour, a middle phase of changes and a possible steday state phase. on a Hauzer Flexicoat® 1200 at the Hauzer competence centre in Venlo. Test conditions of pin on disc tests, adhesion tests, tempering tests, investigation of composition with bulk- and thin film method, morphology and 6 no. 24 | october 2014 | Hauzer for You Wear on Ball (as deposited) ta-C (Arc) ta-C:WC (Arc) ta-C:Cr (Arc) ta-C:Si (Arc) ta-C:H (Arc) ta-C:Si (Arc) ta-C:H (Arc) Picture 3: Wear of the counter body (100Cr6 ball) as deposited in wear tests at room temperature Wear on Ball (450 °C) ta-C (Arc) ta-C:WC (Arc) ta-C:Cr (Arc) Picture 4: Wear of the counter body (100Cr6 ball) in wear tests at room temperature after tempering at 450 °C Wear on Ball (500 °C) high temperature tribological tests were done ta-C:WC (Arc) ta-C:Si (Arc) ta-C:H (Arc) at the same standard conditions used as before in 2013. These results were assured in the high temperature tests (test setup: load 12N against tungsten-carbide-ball, 450°C, 1h-duration, 32mm/s sliding speed). The identified high potential coatings, both doped Picture 5: Wear of the counter body (100Cr6 ball) in wear tests at room temperature after tempering at 500 °C ta-C:W and ta-C:Si, had been tested at 450 °C and 500 °C in tribological tests. The coatings essentially mechanisms have been identified and were found to be com- showed identical behaviour at 450 °C. In tests at 500 °C plex. To overcome these mechanisms, further research and ta-C:W showed lower wear than ta-C:Si (table 1 and 2). development has to be done. Furthermore, the modification of DLC thin films as well as new combinations with differing layers Conclusions or parts of multilayer systems are able to extend the spectrum Adapted and more sophisticated DLC coatings offer an ample of positive properties of DLC thin films. Additionally, the applica- scope of high potential for high temperature applications tion of tetrahedral tungsten-doped carbon layers may lead to concerning the coating properties of wear and friction. Wear improved properties of technical surfaces. Friction Reduction properties Friction Reduction (Room T) Friction Reduction (High T) Wear Reduction Tempering Test Temperature ta-C:WC ta-C:Si RT RT +++ +++ 450 °C RT +++ +++ 500 °C RT +++ ++ 550 °C RT RT 450 °C + + RT 500 °C + + Table 1: Reduction of friction coefficient; (+ and +++ show gradation of friction reduction) properties Wear Reduction (Room T) Wear Reduction (High T) Tempering Test Temperature ta-C:WC ta-C:Si RT RT +++ +++ 450 °C RT +++ +++ 500 °C RT +++ ++ 550 °C RT RT 450 °C +++ +++ RT 500 °C ++ + Table 2: Reduction of wear; (+, ++ and +++ show gradation of wear reduction) 7 microwave Technology innovative Diamond like Carbon Coatings innovation is mostly associated with new and better quality. However, innovation can just as well serve the industry by improving productivity while maintaining the same quality as before. products become more affordable this way. microwave technology promises to do just this. Higher deposition rates for Diamond like Carbon (DlC) coatings with the same hardness and the same or better coefficient of friction are achieved with By Dr. Ivan Kolev, Senior Process Engineer microwave technology. new test results speak for themselves. In the late 1990s DLC coatings were introduced as a tribo- System Set-up logical solution for reduction of friction and improved wear The Hauzer Flexicoat® 850, with an effective coating volume resistance. Nowadays automotive engines cannot be imag- of Ø 500 mm x 500 mm height, combines two microwave ined without DLC coatings, which are expertly tuned to the sources (figure 2) with two unbalanced magnetron cathodes lubricants involved to further reduce the friction inside the with coils to generate closed field configuration, one of engine. Less friction means less fuel consumption and less which equipped with HIPIMS and three CARC+ cathodes CO2 emissions. In the automotive industry cost efficiency is on the opposite wall. The machine is fitted with a plasma a further requirement to be competitive and Hauzer works source for etching and a precursor vessel (HMDSO) allowing hard to develop the cost efficient technologies of the future. Si-doping of DLC coatings. As seen in figure 3, the Hauzer In cooperation with our partners the microwave technology Flexicoat® 850 makes it possible to combine the use of all has been optimized, tested and understood. And when the technologies in one machine. technology seems promising, it has been brought to the industrial production platform Hauzer Flexicoat® 850 (figure 1). In this study we focus on the parameters that most influenced the coating properties. After many hours of research and development we can announce that the DLC coatings produced with microwave technology are reproducible and comparable to DLCs produced with the classic methods of Plasma Enhanced Chemical Vapour Deposition (PECVD). We are still busy with full characterization, but would like to give our customers further insight in our progress with this exciting technology. Figure 1: Hauzer Flexicoat® 850 8 no. 24 | october 2014 | Hauzer for You Figure 2: Microwave sources Figure 3: The walls of the Hauzer Flexicoat® 850 can be mounted with different technologies. Microwave sources (shown in figure 2) can be one of them Experimental Set-up uniformity of 7%.The hardness in figure 5 exhibits a spread The data presented in the graphs and texts of this article of less than 100 HV over the coating height, which gives a are obtained in a machine operated with half a load and uniformity of 2% two-fold rotation. The DLC coatings have been deposited on highly polished HSS test pieces. Prior to deposition Deposition Rate all samples have been etched with argon ions by Ar-ion Figure 6 shows the deposition rate as a function of the gas source. All coatings consist of adhesion layers deposited ratio, C2H2/(Ar+C2H2), on polished test pieces in two-fold by unbalanced, reactive magnetron sputtering and a top rotation. The deposition rate of approximately 3-5 µm/hr DLC layer deposited by microwave PECVD. In all tests the is three to five times higher than in the case of DLC made thickness of the DLC layer is around 1.5 µm. All coatings by PECVD. The deposition temperature has been between are deposited at constant MW power and total gas 180ºC and 220°C, depending on the gas ratio and applied pressure. Four gas ratios, C2H2/(Ar+C2H2) equal to 50%, bias voltage. 66%, 77% and 95% are used, whilst the bias voltage is varied in the range 250 -- 500 Volt. Below, some of Hardness the main properties, such as deposition rate, uniformity, The influence of bias voltage on hardness for the four differ- hardness and coefficient of friction (CoF) are discussed. ent gas ratios is shown in figure 7. Hardness has been measured with a Fischerscope H100 microhardness tester with a Uniformity load of 20 mN. The results show the maximum hardness that Figure 4 and 5 represent the uniformity of the coating as we are able to obtain. As a comparison, typical standard DLC a function of the coating height with regard to deposi- hardness is around 2400 HVpl. This typical hardness has not tion rate and hardness, respectively. Both graphs show been obtained for 95% gas content (yet). Most probably a the results for 50% gas ratio. The other gas ratios exhibit higher bias voltage will bring us there in the next develop- similar behaviour. On the right side of the graphs the ment stage. microwave sources are shown to visualise their position. The zeroth point corresponds to the vertical middle of the Coefficient of Friction chamber, 300 mm corresponds to the top and -300 mm The CoF has been obtained for two different situations: in corresponds to the bottom. The deposition rate in figure 4 fully formulated oil and dry friction. Figure 8 shows the re- varies between 2.67 µm/h and 3.07 µm/h, which gives a sults for the four different gas ratios, C2H2/(Ar+C2H2)=50%, 9 Deposition Rate 300 Vertical Position, mm 200 100 0 Series 1 -100 Figure 4: Deposition rate with uniformity 7% -200 -300 0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 Deposition rate, µm/h Hardness 300 Vertical Position, mm 200 100 0 -100 Figure 5: Hardness uniformity -200 -300 2000 2050 2100 2150 2200 2250 2300 HVpl Deposition Rate 66%, 77% and 95% in fully formulated oil. The Plint tribometer; reciprocating test, stroke length 52100 steel pin with a 30N load applied, resulting in about 180MPa pressure. The test temperature is 100°C. The results for all gas ratios show a CoF generally not exceeding 0.08. The gas ratio of 77% shows the best result; CoF is lower than 0.07. All these results are similar to or better than the CoF of a typical PECVD DLC deposited by pulsed bias, which normally has a CoF between 0.08 and 0.095 tested under the same conditions. The CoF for dry friction has been measured with a tribometer pin-on-disc, with a load of 5N, ball 5 Deposition rate, µm/h 5mm. Frequency 10Hz. The counterpart is an AISI !"#$%&'$()*+,"):%;)<+%)*+'$) 6 measurements have been done by TE77 Cameron- 4 3 2 1 0 40 50 60 70 80 H C /(Ar + H C ), % ² ² ² ² Figure 6: Deposition rate on flat substrates in two-fold rotation 90 100 no. 24 | october 2014 | Hauzer for You Coating Hardness size of 6 mm and rotation speed of 10cm/s. The ball material is 100Cr6. The results (figure 9) show 2000 that all microwave coatings are in the same range as the standard DLC deposited by PECVD technol- 1500 50% 66% 77% 95% HVpl ogy the light blue line. Especially the gas ratios /0(1+%2'+$-% 2500 1000 77% and 95% show a better performance. From both graphs (figure 8 and 9) we can see an overall 500 trend that the CoF decreases with increase of acetylene content. Wear resistance of the 0 200 250 300 350 coatings is still under investigation for both dry 400 450 500 550 Bias Voltage, V Figure 7: Hardness (HVpl) for 4 different gas ratios shown in legenda and lubricated tests. Conclusion Microwave technology allows for deposition of CoF, Fully Formulated Oil!"#)$#+,,-$#".'+,/0(1$2&,$ 0,09 creased deposition rate that is three to five times 0,08 higher compared to DLC deposited by pulsed bias. 0,07 The process is tuneable in a broad range and the 0,06 technology can be combined with other technolo- 0,05 CoF DLC coatings with similar properties, and an in- + gies, such as arc evaporation (CARC ) and mag- 50% 66% 77% 95% 0,04 0,03 netron sputtering, in a single vacuum chamber. 0,02 The microwave technology has been successfully 0,01 introduced and developed in Hauzer Flexicoat® 0 850 platform. Based on this process we found a 0 20 40 60 80 100 120 140 Time, min broad operating window that allows for possible Figure 8: Coefficient of Friction (CoF) in fully formulated oil for 4 different gas ratios, shown in legenda fine-tuning of the coatings. The next step will be a further characterization of the coatings and testing on components as well as investigating CoF, Pin-on-Disc the potential of the technology for other applica- 0,40 tions. 0,35 0,30 Acknowledgements: We want to thank our partners University of Leeds (especially Dr. Hongyuan Zhao) and the Karlsruher Institut für Technologie (Prof. Sven Ulrich and Dr. Jian Je) for their cooperation. 0,25 CoF 10 95% 77% 66% 50% PECVD DLC 0,20 0,15 0,10 0,05 0,00 0 500 1000 1500 2000 2500 3000 Distance, m Figure 9: CoF of dry friction, measured with pin on disc method 3500 11 Turnkey Tool Coating more Than Just Coating By Michiel Eerden, product manager physical vapour Deposition (pvD) coatings are used to increase tool productivity substantially, but a coating process involves much more than just the right way to deposit a coating. Cleaning, pre- and post-treatment, quality control, these are all factors that can heavily influence the coating quality in a positive or a negative way. in this article we will share some insights on the peripheral equipment that complements the Hauzer coating machines. Coating is just one of the steps in a 6-8-step program be- tem, the tools are mounted on special holders and rotated tween the uncoated substrate and the coated tool that has through a container with appropriate media. The choice of an up to tenfold longer lifetime. The process of re-coating media is dependent on the cutting tool dimensions and the can start with de-coating, also called stripping. This step application. Process parameters, such as rotation speed and is used when HSS or carbide shaft tools and hobs were duration, can be adapted as well. The effect on performance already many times coated and now need to be stripped can be seen in figure 1. before being recoated. The equipment Hauzer offers con- Dry and wet blasting is another method used for pre- and sists of a tank containing the chemicals and an additional post-treatment of tools. Hobs for example can be dry tank for rinsing, including hand shower and compressed air Normalized performance for drying. 140 Pre- and Post-treatment 120 In some cases pre-treatment of the tools is necessary to 100 improve the quality of the cutting edge (e.g. removal of 80 burs, loose material) and enhance the radius of the cutting 60 edge to improve coating adhesion. The best method of 40 pre-treatment is dependent on the application. For pre- and 20 post-treatment of shaft tools, such as drills, taps and end mills, Hauzer offers a drag finishing system. In this sys- 0 123 100 TiAlN Figure 1: Edge preparation resluts TiAlN incl. 6 µm edge rounding 12 no. 24 | october 2014 | Hauzer for You blasted for optimum adhesion and performance. Wet is necessary to determine if pre-treatment is needed or if blasting can also be a good alternative for deburring and the tools are already damaged when they come in. Process edge honing; it can be used for inserts and hobs and it is a control relies on monitoring and changing details whenever good post-treatment for all cutting tools. Figure 2 shows the necessary. If one step shows quality failures, the next steps result of post-treatment of end mills on the final workpiece will be influenced negatively. If process control is done quality determined by its roughness. properly, failures will be noticed early enough and measures can be taken to solve issues appropriately. For basic quality Surface roughness workpiece (µm) control of tools following deposition, Hauzer recommends 0,6 hardness measurement, a calo test for measurement of 0,5 coating thickness, Rockwell or scratchtest for adhesion and 0,4 a stereo microscope for visual inspection of tools and test pieces. Visual inspection in between steps and of the out- 0,3 going tools will close the circle of quality control. 0,2 0,1 0 Cleaning post-‐treated not post-‐treated Figure 2: Result of post-treatment on workpiece quality. In order to ensure perfect adhesion of the coating onto the substrate material, pre-cleaning of the products is an essential step. The size of the cleaning line needed depends on the productivity requirements and the tool material. Cleaning is removal of grease and dust, but oxides can also be removed. There is the option of a multiple tanks acqueous cleaning line or the option of a single chamber cleaning unit, which needs a smaller floor space. The cleaning steps with chemicals in a one chamber cleaning unit are performed under vacuum. Chemicals will be stored in buffer tanks, before they can be introduced in the chamber for cleaning. To give an idea of productivity, the multi-chamber cleaning line has capacity for two Hauzer Quality Control Flexicoat® 850 systems. For a Hauzer Flexicoat® 1000, a At certain points in the process it is very important to mea- larger volume is available. The single chamber unit has sure the results of the treatments, in order to be sure the capacity for one Hauzer Flexicoat® 850 system, but is also chain remains unbroken. Visual inspection on incoming tools available in a larger size if more capacity would be needed. PVD Tool Coatings Turnkey Solution from Hauzer 13 2 Pre-treatment Concluding 1 Stripping More and more starting job coaters, regrinders and tool 3 Quality control makers invest in PVD coating technology, because of its growing market and profitability. The technology has a reputation for being a difficult process, but with Hauzer’s turnkey solution, implementation is made easy. 4 Cleaning & drying All technologies and equipment are included and matching. Hauzer provides worldwide full support. 5 Fixturing & visual inspection Why Turnkey Solution? 6 PVD Coating • Robustcoatingequipmentandperipheralequipment from one supplier 8 (Post-treatment) • Allequipmenttunedtoanoptimizedcoatingprocess • Allperipheralequipmentfromreputablesuppliers 7 Quality control • Customizedsolutionsarestillpossible Turnkey solution visualised www.hauzer.cn 22792_HZ_EASTPO_TurnKey.indd 1 15-05-14 13:50 Transferring the pen on the 27th of June a reception was organised in honour of Thomas Krug. During his farewell speech Thomas transferred his pen, with which he signed many contracts, to his successor Jeroen landsbergen. 14 no. 24 | october 2014 | Hauzer for You power Supply maintenance “Process Drift Is a Risk” Hauzer is building machines since 1983; some of the old machines are still running smoothly in certain applications. but of course this is not achieved without some necessary precautions. A pvD coating machine is made of many different components and without maintenance and sometimes replacements of these components, a long lifespan is just not possible. The power supply is an essential element of vacuum coating on the next steps that can be taken. Anthonie: “The customer equipment, so maintenance of this part is especially important. decides what needs to be done; our role is an advisory one. “Although dust build-up can be prevented by the right machine But it is clear that regular maintenance and diagnosis of design, it will never be possible to eliminate dust build-up problems that can be foreseen will prevent unscheduled completely,” Anthonie Kaland, Manager Electrical Engineering, downtime of the machine.” explains. “During its lifetime the power supply will always be affected by dust, especially when the coating dust is conductive.” Cooling Capacity So a yearly check of the power supplies will ensure that Diagnosis irregularities will be noticed timely. Furthermore, removing Maintenance means that the power supply will be cleaned dust on the heat sinks will keep the cooling capacity intact and with compressed air and a vacuum cleaner. After the clean- will prevent overheating. “During the lifetime of a power ing, all fans of power supplies and electrical cabinets will be supply set points and actual values will gradually deviate. checked and cleaned. Additionally, the control values for the This can lead to process drift which in turn can affect the power supply including all voltage, current and power set coating properties in a negative way. As this is a gradual points and actuals will be measured. A diagnosis will be process, it can happen without anyone noticing.” the result and the field service engineer who performs the maintenance will give advice 15 We want to know what is driving our customers. Customer Satisfaction Research Overall Customer Satisfaction Degree We want to know what customers think of our performance. We want to know how we can support our customers in a better way. We want to know how happy our customers Participants per region are with our products and services. We just want to know… Europe: 51 North America: 22 Asia: 28 •Totally satisfied Totally satisfied (21%)(21%) • Satisfied and hopefully Hauzer Satisfied and hopefully Hauzer can still improve (76%) still improve (76%) •can Dissatisfied but hopefully Hauzer can improve (2%) Dissatisfied but hopefully Hauzer • Completely dissatisfied (1%) can improve (2%) South America: 6 Completely dissatisfied (1%) • Technical know-how/ knowledgeable This spring our marketing intern, Ngan-Ha Mai, developed customer satisfaction research to answer all the questions that we often ask ourselves when we think we know our customers. How well do we really know them? Ngan-Ha started with internal interviews to determine what would employees • Good interaction between HTC’s engineers or technicians with customers • Good quality, robust machine with high fixturing design be important information for our different departments. She then developed internal and external surveys. The results of • Not enough pro-active in contacting customers these surveys were used to analyse the gap between what • Sometimes status of enquiries is unclear we think the customer thinks and what the customer really • Insufficient documentation and information thinks. On top of the quantitative data, she held several given in-depth telephone interviews with a random selection of customers from all continents. The complete data collection resulted in an analysis that will be used to improve our customer support strategy and communication with customers. Below you find some of the results, quotes and recommendations. With these results • We will better communicate on the status of our customers’ enquiries • We will analyse the individual answers to get insight in we have decided to make three actions our priority: “insufficient documentation and information given” and • We will contact our customers pro-actively and visit we will make sure our documentation and information is them at least once a year sufficient in future Meet us… Hauzer would like to welcome you to the following conferences and exhibitions, where we will be present. Aachener Colloquium Engine Expo 2014 JIMTOF October 6-8, 2014 October 28-30, 2014 October 30-November 4, 2014 Aachen Novi Tokyo Germany USA Japan
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