不锈钢加工特点及要点

摘要：<span style="font-family:宋体;">不锈钢加工特点及要点</span> <p> <span style="font-family:宋体;">slots free games是知名的不锈钢加工厂家</span><span>,</span><span style="font-family:宋体;">并且在生产不锈钢的领域有着较高的声誉和信誉</span><span>,</span><span style="font-family:宋体;">产品质量高</span><span>,</span><span style="font-family:宋体;">价格合理</span><span>,</span><span style="font-family:宋体;">广受顾客朋友的好评</span><span>.</span><span style="font-family:宋体;">下面介绍一下不锈钢加工特点及要点：</span> </p> <p> <span style="font-family:宋体;">1、</span><span style="font-family:宋体;">加工硬化严重</span><span>:</span><span style="font-family:宋体;">在不锈钢中</span><span>,</span><span style="font-family:宋体;">以奥氏体和双相</span><span>(</span><span style="font-family:宋体;">奥氏体</span><span>+</span><span style="font-family:宋体;">铁素体</span><span>)</span><span style="font-family:宋体;">不锈钢的加工硬化现象*为突出</span><span>.</span><span style="font-family:宋体;">因为不锈钢的塑性大</span><span>,</span><span style="font-family:宋体;">塑性变形时晶格歪扭</span><span>,</span><span style="font-family:宋体;">强化系数很大</span><span>;</span><span style="font-family:宋体;">且奥氏体不够稳定</span><span>,</span><span style="font-family:宋体;">在切削应力的作用下</span><span>,</span><span style="font-family:宋体;">部分奥氏体会转变为马氏体</span><span>;</span><span style="font-family:宋体;">再加上化合物杂质在切削热的作用下</span><span>,</span><span style="font-family:宋体;">易于分解呈弥散分布</span><span>,</span><span style="font-family:宋体;">使切削加工时产生硬化层</span><span>.</span> </p> <p> <span style="font-family:宋体;">2、</span><span style="font-family:宋体;">切削力大</span><span>:</span><span style="font-family:宋体;">不锈钢在切削过程中塑性变形大</span><span>,</span><span style="font-family:宋体;">尤其是奥氏体不锈钢</span><span>(</span><span style="font-family:宋体;">其伸长率超过</span><span>45</span><span style="font-family:宋体;">号钢的</span><span>1.5</span><span style="font-family:宋体;">倍以上</span><span>),</span><span style="font-family:宋体;">使切削力增加</span><span>.<span style="font-family:宋体;">不锈钢加工特点及要点，</span></span><span style="font-family:宋体;">同时</span><span>,</span><span style="font-family:宋体;">不锈钢的加工硬化严重</span><span>,</span><span style="font-family:宋体;">热强度高</span><span>,</span><span style="font-family:宋体;">进一步增大了切削抗力</span><span>,</span><span style="font-family:宋体;">切屑的卷曲折断也比较困难</span><span>.</span> </p> <p> <span style="font-family:宋体;">3、</span><span style="font-family:宋体;">切削温度高</span><span>:</span><span style="font-family:宋体;">切削时塑性变形及与刀具间的摩擦都很大</span><span>,</span><span style="font-family:宋体;">产生的切削热多</span><span>;</span><span style="font-family:宋体;">大量切削热都集中在切削区和刀削接触的界面上</span><span>,</span><span style="font-family:宋体;">散热条件差</span><span>.<span style="font-family:宋体;">不锈钢加工特点及要点，</span></span><span style="font-family:宋体;">在相同的条件下切削温度比</span><span>45</span><span style="font-family:宋体;">号钢高</span><span>200</span><span style="font-family:宋体;">℃</span><span style="font-family:宋体;">左右</span><span>.</span> </p> <p> <span style="font-family:宋体;">4、</span><span style="font-family:宋体;">切削不易折断、易粘结</span><span>:</span><span style="font-family:宋体;">不锈钢的塑性、韧性都很大</span><span>,</span><span style="font-family:宋体;">在高温、高压下</span><span>,</span><span style="font-family:宋体;">不锈钢与其他金属的亲和性强</span><span>,</span><span style="font-family:宋体;">易产生粘附现象</span><span>,<span style="font-family:宋体;">不锈钢加工特点及要点，</span></span><span style="font-family:宋体;">并形成积削瘤</span><span>,</span><span style="font-family:宋体;">既加剧刀具磨损</span><span>,</span><span style="font-family:宋体;">又会出现撕扯现象而使已加工表面恶化</span><span>.</span><span style="font-family:宋体;">含碳量较低的马氏体不锈钢的这一特点更为明显</span><span>.</span> </p> <p> <span style="font-family:宋体;">5、</span><span style="font-family:宋体;">刀具易磨损</span><span>:</span><span style="font-family:宋体;">切削不锈钢过程中的亲和作用</span><span>,</span><span style="font-family:宋体;">使刀削间产生粘结、扩散</span><span>,</span><span style="font-family:宋体;">从而使刀具产生粘结磨损、扩散磨损</span><span>,</span><span style="font-family:宋体;">致使刀具前刀面产生月牙洼</span><span>,</span><span style="font-family:宋体;">切削刃还会形成微小的剥落和缺口</span><span>;</span><span style="font-family:宋体;">加上不锈钢中的碳化物</span><span>(</span><span style="font-family:宋体;">如</span><span>TiC)</span><span style="font-family:宋体;">微粒硬度很高</span><span>,</span><span style="font-family:宋体;">切削时直接与刀具接触、摩擦</span><span>,</span><span style="font-family:宋体;">擦伤刀具</span><span>,</span><span style="font-family:宋体;">还有加工硬化现象</span><span>,</span><span style="font-family:宋体;">均会使刀具磨损加剧</span><span>.</span> </p> <p> <span style="font-family:宋体;">　</span> </p>