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三、超高强度钢攻丝 1.超高强度钢的一般情况和切削加工特点一般习惯上称屈服强度和抗拉强度分别超过120kgf/mm~2和140kgf/mm~2的钢材为超高强度钢。它具有很高的强度和韧性,能承受很高的应力,有很大的比强度。目前,这种钢材多用于薄壁结构的飞行壳体和飞机起落架。也可用来控制高压容器、化工高压系统部件、装甲板、模具和桥梁工程上的高强度零件等。超高强度钢分为低合金超高强度钢、中合金超高强度钢和高合金超高强度钢。在高合金超高强度钢中
Third, the ultra-high-strength steel tapping 1. Ultra-high-strength steel and cutting the general characteristics of the general habit of saying that the yield strength and tensile strength were more than 120kgf / mm ~ 2 and 140kgf / mm ~ 2 for ultra-high strength steel steel. It has high strength and toughness, can withstand high stress, great strength. Currently, this type of steel is mostly used in thin-walled flying housings and aircraft landing gear. Can also be used to control high-pressure vessels, chemical high-pressure system components, armor plate, mold and bridge engineering high-strength parts. Ultra-high-strength steel is divided into low-alloy ultra-high-strength steel, alloy steel and high-alloy ultra-high strength steel. In high-alloy high strength steel