A Swiss Lathe is a type of lathe whereby the holding mechanism or collet is recessed behind the guide bushing. The Swiss lathes are also commonly known as Swiss screw machines, Swiss automatic lathes or Swiss turning centers. The Swiss lathe differ from the traditional lathes in the way that the holding mechanism or collet that holds a bar stock will not be exposed directly to the lathe bed and the tooling. This particular con-figuration provides this specific machine tool a number of benefits over the traditional type lathes.
The advantages of the Swiss lathe over traditional lathes are largely due to the fact that it utilizes guide bushing. The guide bushing purpose is to offer an additional sup-port to stock material when the part is machined or turned. This guide bushing is fitted closely yet not tightly to surround the bar-stock materials. The support of this bar-stock material means that the functions of the guide bushing act in a similar fashion as steady-rest does on carriages of traditional lathes.
The Swiss-style lathes typically hold a better tolerance on the parts as turning opera-tions will be conducted closely to the guide bushing. The guide bushing offers rigidity to turned parts due to the fact that a very small amount of the stock will be exposed once they have left the bushing and until such stage that the turning tools have been engaged. The guide bushing offers significant rigidity to the stock and these machine types are significantly well-adapted to holding a tight tolerance.
Another benefit of the abilities of the Swiss-style lathe is that they have the abilities to turn the small-diameter parts. Alternatively they can turn parts that have a larger length-to-diameter ratio. Chatter of tools is also minimized due to the guide or tool bushing juxtaposition.
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