Production Machining

JUN 2018

Production Machining - Your access to the precision machining industrial buyer.

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:: Toolholders and custom cutting blades are designed by Weisser for the rotational turning process and manufactured for them by Mapal and other cutting tool manufacturers. mm and a cutting speed of 200 m/min. e same insert then performs the finishing with 0.4 mm and a cutting speed of 240 m/min. Using conventional turning on this applica- tion, feed rates of max 0.1 – 0.2 mm were possible, according to management at Mapal. Tool life was 2,000 parts, and machining time per part was 6 seconds. In this example, if the width of the surface to be machined is smaller than or equal to the width of the blade, then the surface is scroll-free, free of twists. If the width of the surface to be machined is larger than the width of the blade, then the OD tool can feed along the Z axis to cover the distance while it pivots in C axis, in which case there are technically micro-threads left. However, both the amplitude and frequency of this surface waviness A. B. C. are much slighter than the lead produced through conven- tional turning, so the surface is still measurably smooth, the company says. Weisser is able to offer this rotational turning process for operations that include OD, ID and face turning. Even if freedom from twists is not required, the company says, the processing time is reduced many times over with the new technology—even compared with other soft and hard turning processes. With up to 77 percent savings potential compared with conventional machining methods, the company believes it is indeed working. Mapal Inc. | 810-364-8020 | Weisser Corp. | 864-655-4440 | :: These illustrations show the kinematics used to hard turn workpieces using rotational turning. TECH BRIEF :: 27

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