机床的材料 近几年来,在机床制造材料的选择问题上没有发生原则上的变动。基本材料仍然和从前一样,还是灰口铸铁和低合金钢。新牌号的高级强度球墨铸铁还没有代替普通铸铁广泛应用,这是说明构成机床重量主要部分的基本零件的刚度,用普通铸铁制造是足够的。 高级强度铸铁只用於? Material of machine tools In principle, there has been no change in the selection of machine tool material in recent years. The basic material is still the same as before, or gray cast iron and low alloy steel. The new grade of high-strength ductile iron has not yet been widely used in place of ordinary cast iron, which illustrates the rigidity of the basic components that make up the major part of the weight of the machine, which is sufficient with normal cast iron. Advanced strength cast iron only for?