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汽车磨损件的修复,在修理厂大都采用硬质粉末合金堆焊的方法进行。但是,用这种方法修复的零件却很难机械加工,尤其是要磨削汽车发动机曲轴轴颈的堆焊层就更困难。这种轴颈的硬度高,在磨削过程中砂轮消耗量大,磨削效率低。 提高加工硬质合金生产率的有效途径就是采用电磨轮磨削。 电磨轮磨削曲轴轴颈可以在经改装的3A423型外园磨床上进行。该磨床应装设一个集
Repair of car wear parts, mostly used in repair shop hard alloy powder surfacing method. However, the parts repaired in this way are difficult to machine, especially when it comes to grinding the overburden of a crankshaft journal of a motor engine. The high hardness of this journal, the grinding wheel in the grinding process consumes large, low efficiency grinding. An effective way to increase the productivity of machining cemented carbide is to use electric grinding wheel grinding. Electric grinding wheel grinding crankshaft journal can be modified on the 3A423 external grinder. The grinder should be fitted with a set