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hp tooling 2020 #2

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The journal of hp tooling is an english, global publication on all aspects of high precision tools, accessories and their applications.

materials & tools

materials & tools interview Interview with Gerhard Knienieder, EMUGE-FRANKEN EMUGE-FRANKEN Managing Director Gerhard Knienieder about precision tools, the advantages of joint developments and the international presence of the company. From the very beginning, EMUGE-FRANKEN’s intention was to realize its own ideas - starting with the singlefinishing tap with spiral point. Since then, threading tools and innovations have shaped the company. What is special about threading tools? Gerhard Knienieder: Threading tools are embedded in the DNA of EMUGE-FRANKEN, from the time of its foundation by Richard Glimpel in 1920 to the present day! Of course, a multitude of technologies have been added in the meantime: as a system supplier for all aspects of internal threads we can offer our customers a well-rounded program including tools for thread forming, thread milling, thread gauges, tap holders and twist drills. Problem solution from one source! Since the 1950s, EMUGE has been synonymous for precision clamping tools and FRANKEN for milling technology. In contrast to many other types of cutting tools, the special feature of threading tools is that they often perform one of the last machining operations on the almost finished component. Safe and reliable threading is essential to avoid costly rejects with very expensive workpieces, for example in large plant construction or with components made of high-quality materials. On the other hand, we are constantly working on improving productivity in large-scale production, e.g. in the automotive industry, in order to reduce the costper-part for the customer. In this regard, our latest new developments, the EMUGE Speedsynchro collet holder and also the EMUGE Punch Tap, have created completely new possibilities for saving time. The EMUGE Taptor could make its mark in the future. However, its development is not yet complete and it is currently being tested for series production. What is interesting about precision tools - and thus also about threading tools - is the wide range of application industries: although the automotive industry represents a large customer group, threading tools are needed in almost all metal processing companies, whether in mechanical and plant engineering, aircraft industry or medical technology. Each industry has its own special requirements, which we are happy to meet. This is what makes working with precision tools so exciting! We work on newly developed products and technologies of our customers and thus have always kept pace with the times! Future-oriented with innovations. The threading tool presented at EMO 2019 is the latest tool for which a patent application has been filed. What is so special about it? And what is the difference to PunchTap technology? Gerhard Knienieder: The innovative EMUGE Taptor technology integrates two actually separate machining sequences of pre-drilling and tapping into a single process step. The time saving is achieved by eliminating the entire time that the pre-drilling process in itself would take. The Taptor tool is used in conjunction with a special EMUGE Speedsynchro collet holder with transmission gear. This achieves a constant cutting speed in the machining of the hole. In addition, the process time can be further reduced. For example, machining a cylinder head with an M6 thread can save 1-2 seconds. In contrast to Taptor, the Punch Tap technology reduces the time of movement during thread generation, the pre-drilled operation remains unaffected. The thread is produced by significantly shortening the path of the individual thread teeth through specific kinematics. The machining time for a typical thread can be reduced by up to 75 % when viewed separately. This technology ensures a high process reliability, especially under MQL conditions. You often develop projects together with customers, in this case with Audi. How do such joint developments take place and what is particularly important? What advantages does this cooperation offer? Gerhard Knienieder: Ideas for new products can be created in our development department or directly at the customer’s site. The best scenario emerges, when both possibilities are closely linked. In this way, customer requirements create immediately specific development steps. In addition, with some product developments we reach the limits of what is currently technologically/ physically feasible. This makes it all the more important to clarify the possibilities, e.g. of machine technology on the user side, together with the customer. Our experience with such development projects is very positive: working with a team of developers, users and production specialists in a creative, open atmosphere is fun, motivating - and has also proven to be highly 10 no. 2, June 2020

materials & tools productive! In particular, the interdisciplinary composition (including measurement technology, NC experts, machine engineers, machining and assembly specialists - whether from us or from the customer’s side) brings all the necessary experts to the table. This turns a sequential into a simultaneous development and saves a great deal of time, which can be important, especially with fixed milestones - e.g. manufacturing start of the production line (SOP)! EMUGE-FRANKEN is present on the international stage. How important are manufacturing plants abroad? Gerhard Knienieder: Modern logistics enable us to ship our “small” tools “Made-in-Germany” within the shortest time even to the most distant countries. The geographical proximity of a production facility is therefore generally not essential for our international customers. 95 % of our tools are therefore still manufactured in Germany. The only countries where we manufacture taps for the regional markets are India and Brazil due to the high import duties. Much more important is the competent service of our EMUGE-FRANKEN sales and service team in the individual countries. The focus of our internationalization over the past decades has therefore been the establishment of over 50 EMUGE-FRANKEN subsidiaries/partner companies in all important regions of the world. This enables us to support our customers with well-trained specialists. In Austria, China and North America, formerly exclusive resharpening centers have meanwhile developed into important manufacturing plants for special tools made of solid carbide. However, it is not threading tools that are resharpened there, but primarily milling and drilling tools. Customer proximity combined with specific requirements - especially in the USA and China - have supported this positive development in recent years. The patented Franken Cut&Form end mill enables finishing and polishing of the workpiece in one operation The Punch Tap technology enables internal thread production in a quarter of the time The entrepreneurial family today: Thomas Pompe, Cornelia Glimpel-Pompe, Helmut Glimpel, Ulrike Glimpel-Knienieder, Gerhard Knienieder further information: www.emuge-franken.com no. 2, June 2020 11

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