The results show that the pre-hardened plastic-mould steel belongs to a little low machinability steel because of much hard inclusion existing in microstructure and its high strength and hardness.
结果表明，这类材料属较难加工材料，这主要是由于钢中存在大量硬质点，且材料具有较高强度和硬度所致。
One problem was that magnesium (Mg) combined with tin (Sn) during billet reheat, which resulted in low strength, such as tensile strength, and poor machinability.
一个问题是，在坯料再加热过程中镁(Mg)与锡(sn)结合，导致低的强度(例如拉伸强度)，以及差的机械加工性。
High strength, low thermal conductivity, high ductility and high work hardening tendency of stainless steels are the main factors that make their machinability difficult.
不锈钢材料由于强度高、导热系数低、韧性大以及加工硬化严重等原因使得切削加工非常困难。
High strength, low thermal conductivity, high ductility and high work hardening tendency of stainless steels are the main factors that make their machinability difficult.
不锈钢材料由于强度高、导热系数低、韧性大以及加工硬化严重等原因使得切削加工非常困难。
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