Centerless roller burnishing tool is used for machining shafts, pins, axles.
STWY is mainly used for the centerless rolling of shafts with diameter 11-100 mm and maximum length strictly up to 80mm, and can be manufactured according to customers' requirements.
HSS rollers.
Rolling is a type of machining, the purpose of which is to harden the surface layer of the part, to increase its wear resistance and to achieve 8-10 surface accuracy qualification.
By plastic deformation with rollers or ball rollers. Rollers are used for machining parts made of various plastic materials and steels with hardness not exceeding HRC 35-40.
The process proceeds without chip removal. Roller burnishing eliminates the roughness obtained after workpiece turning by reducing its size by the amount of residual deformation. The rolled hole has a correspondingly larger size. The part surface is prepared for deep rolling by finish turning.
Roughness should be within 5-6 classes of surface finish class. It should be taken into account that deep rolling can change the diameter of the surface up to 0,02-0,03 mm. Therefore, the external surfaces of the part should be made to the largest size limit, and the internal - to the smallest.
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