Product category:
Motor sports manufacturing: machining, software, CAM
News Release from: NCMT | Subject: VIPER grinding - gear making
Edited by the Manufacturingtalk Editorial
Team on 21 June 2006
HMC uses VIPER to machine racing gears
Avoiding the expense and long delivery of form dressers for conventional form grinding, a horizontal machining centre uses VIPER grinding to machine precision gear for a racing car transmission.
A Makino A55 was shown at Makino NCMT UK agent's technology centre in Coventry cycling through the process for VIPER grinding the teeth and face register of a high-performance, precision gear for a racing car transmission NC contour dressing with a diamond disc created an involute on the grinding wheel so that barrelling on the teeth could be produced by interpolating just two CNC axes on the machine
This article was originally published on Manufacturingtalk on 22 May 2001 at 8.00am (UK)
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Again, the expense and often long delivery of form dressers were avoided.
After hobbing and hardening, the gear first had its register ground on the Makino, followed by finish grinding of each of the 45 teeth in one pass in a cycle time of six minutes.
Usually, the latter operation is completed on a purpose built, expensive gear grinder.
The A55 offers greater flexibility in that it can grind the register and teeth as well as perform milling, drilling and other metal cutting operations, since the appropriate cutters can be exchanged from the tool magazine in exactly the same way as the grinding wheels.
For this application, an inexpensive, 220mm diameter, 15mm wide aluminium oxide wheel from Tyrolit was used at peripheral speeds of between 35 and 50m/s.
Accuracy of the gear produced was Class 1. Request a free brochure from NCMT ...
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