内腔生产共2台机，生产为了提高生产产能，将进给、转速提高，其中有一台机

Production machine lumen total of 2, in order to improve the production capacity of the production, the feeding speed is increased, which has a relatively long machines because of their age, when the high speed feed roughing cutter (D4.5 * 8 milling) so that the processing knife, resulting in coarse size of the opening does not reach the standard program settings, when the finishing cutter (cutter D3.5) secondary processing, since there is no standard size roughing, finishing allowance setting according to the program can not be processed to the required drawing Inside

Material test ...

There are two machines for inner cavity production. In order to improve production capacity, feeding and rotating speed will be increased. One of them, because of the long years, when feeding at high rotating speed, opens the rough cutter (D4.5*8 milling cutter) to process the concession cutter. As a result, the roughing dimension does not meet the programming standard. When finishing cutter (D3.5 milling cutter) is processed twice, because the roughing dimension does not meet the standard, the finishing cutter is processed according to the programming. The allowance can not be processed to the drawing requirements.<br>