Problems of falling chip, tool tipping and big noise are happened during cutting off main bearing caps made of gray casting by using combination milling cutters.
采用组合铣刀切断灰口铸铁材质的汽车发动机主轴承盖时，出现工件掉渣、刀具崩刃、噪声大等问题。
2
Considering the problem existing in the back-off and milling operations of current small-scale workover, a hydraulic rotary table was developed.
针对目前小修井作业在倒扣、磨铣等作业中存在的问题，研制了适合于小修井作业的液压转盘。
3
The refractory plate is made with high grade bauxite, burn-off stone, light synthetic foam powder, aluminum titanate powder, phosphoric acid and water, and through mixing, ball milling and casting.