risk of the valve-fl oat that often occurs with a conventional “passive” closing mechanism.
Of course, designs like this are of little use without the machining technology and expertise needed to bring them to life, and here too the Ducati imperative of quality, perfor- mance and innovation is in effect. “To continue to increase the performance levels of our engines, it is vital for us to optimize all phases of the various machining processes,” said Pietro Palma, head of the Mechanical Machining Unit. “The two most im- portant steel components, the drive shafts and the camshafts, are machined completely at our plant, because these are key components on which we concentrate our knowledge.” Palma said that a large part of that continuous improve- ment process consists of fi nding and working with companies who share Ducati’s commitment, companies like Walter, long- time suppliers of Ducati’s roughing and fi nishing tools. According to Palma, the ongoing challenge is “guarantee- ing quality and precision, not forgetting the importance of
achieving a sustainable cost on an industrial level.” Walter has worked with Ducati to achieve those goals, becoming “one of our strategic partners and is able to develop technologies that go far beyond those of a simple supplier,” said Palma. According to David Abate, Ducati’s manager of mechani- cal machining technologies and process development, “The attention to, and perfection of each machining phase is a daily goal for us. For example, the desmodromic timing system involves twice the number of cams and the timing of the lobes on the shaft must be extremely precise. The cam profi les are complex and therefore, during machining, the milling cutter must follow a profi le and not carry out its classic rotary move- ment around a fi xed axis. For this special machining strategy, our initial collaboration with Walter on the development of a special disk tool for this operation was a complete success. But the evolution of this application has not stopped.” Initial tests on the part, which is made from high-perfor- mance steel and requires a large volume of material to be re-
WHERE QUALITY COMES TO THE SURFACE
4 Surface Preparation 4 Shot Peening 4 Blast Cleaning 4 Wet-Blast Systems
Visit IMTS Booth 6066
800-228-7894 Toll-Free, U.S. & Canada E-mail:
meinfo@guyson.com
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