Controllable precision finishing process for surface of high-speed tool constraint abrasive part

Controllable precision finishing process for surface of high-speed tool constraint abrasive part

  • CN 102,320,023 B
  • Filed: 10/13/2011
  • Issued: 05/06/2015
  • Est. Priority Date: 10/13/2011
  • Status: Active Grant
First Claim
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1. carve a milling piece surface controllable accurate finishing process, its manufacturing procedure is:

  • (1), by part at machine tooling center carry out preprocessing and carving Milling Machining, then the carving milling cutter processed part is changed into the hard alloy bar of equivalent diameter;

    (2), by hard alloy bar to be fixed in machine tooling in the heart, and to make hard alloy bar placement parallel with piece surface, make to leave gap between hard alloy bar and piece surface, starter motor, make hard alloy bar High Rotation Speed;

    (3), pour abrasive material mixed liquor into, described abrasive material mixed liquor is grinding and polishing cream and oily mixture, by part and hard alloy bar sink in the mixture of grinding and polishing cream and oil, abrasive material mixed liquor carries out micro-removal processing by the High Rotation Speed of hard alloy bar to piece surface, the implementation procedure of this micro-removal is;

    one is the process of micro-bulge peak to piece surface, the peak part of the micro-bulge of piece surface is under the cultivated plough effect of high speed abrasive particle, crystal grain is made to produce dislocation, a large amount of gatherings of dislocation produce micropore, these holes are under the effect of continuous bombardment power, produce the crackle paralleled with working face gradually, when crackle reaches capacity length, the peak part of micro-bulge just peels off with thin flap, form abrasive particle, also make the height of micro-bulge decline simultaneously, two is process of the below of peak part to micro-bulge, this place is greater than the peak part of micro-bulge due to volume, the cultivated plough effect of abrasive particle is not enough to make it produce abrasive particle, but constantly bombard power, make it produce plastic deformation, crystal grain is herein more tight, and have portion crystal to be extruded into the recess on micro-bulge side, play the effect of filling and leading up groove, thus reduce the roughness on surface, achieve the process of micro-removal.

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