| 摘要 |
PURPOSE:To reduce the processing time and to improve the processing preciseness, by fluctuating the honing processing pressure between zero or a very small value and a cutting processing pressure during the procession of a dimeterically internal part. CONSTITUTION:Before the processing, honing rapid expansion is carried out under a prescribed pressure 7 for a period t1 to dress the grind stone 4 and to cut a certain degree. After this, a cutting pressure 8 is lowered to cut for a period t2. After the lapse of this period t2, the pressure is lowered to a pressure as shown by the reference numeral 9 to smooth the cut diametrical internal surface for a period t3, and then the pressure is lowered to zero or a minute pressure 10, when the cutting of the grind stone 4 against the work 1 becomes zero or a minute amount, so that the processing stress is released and the processed internal diameter is stabilized. Finally, without relating to the previously repeated cycles the pressure is lowered to a pressure 12 for a period t4 to finish the work so that the honing for the work 1 may be completed. |
