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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=61" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">光纤激光切割机加工高温合金的难点在哪里？ </h1> <p class="xg1"> 时间：2016-3-8 14:39<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(2196)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=4156&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=61" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>高温合金是我们加工中比较常见的材料，那么它能否使用光纤激光切割机来进行加工呢？下面我们来围绕“光纤激光切割机加工高温合金的难点”为大家分析一下。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div>高温合金是我们<a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>中比较常见的<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>，那么它能否使用光纤<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>切割机来进行加工呢？下面我们来围绕“光纤激光切割机加工高温合金的难点”为大家分析一下。</div><div><br></div><div style="text-align: center;"><p><a href="data/attachment/portal/201603/08/144219r49yzxibxck98w9c.jpg" target="_blank"><img src="data/attachment/portal/201603/08/144219r49yzxibxck98w9c.jpg"></a></p><p><br></p></div><div>首先要给大家介绍的是光纤激光切割机的加工原理：由激光器所发出的激光经透镜聚焦，在焦点处聚成一极小的光斑，处于其焦点处的工件受到高功率密度的激光光斑照射，会产生10000°C以上的局部高温，使工件瞬间汽化，再配合辅助切割气体将汽化的金属吹走，随着数控机床的移动，达到切割的目的。</div><div><br></div><div>高温合金由于其硬度高，耐高温，所以在使用激光切割时会难以保证保证精度，那么，高温铝合金和一般钢材相比，使用光纤激光切割机加工难点的主要表现：</div><div><br></div><div> 1.加工硬化倾向大。比如GH4169未强化处理的基体硬度约HRC37，金属激光切割机切割后表面将会产生0.03mm左右的硬化层，硬度增加到HRC47左右，硬化程度高达27%。加工硬化现象对氧化先端丝锥寿命有很大影响，通常会产生严重的边界磨损。</div><div><br></div><div> 2.材料导热性差。切削高温合金时产生的大量切削热由氧化先端丝锥承受，刀尖承受了高达800～1000℃的切削温度，在高温和大切削力作用下，将导致切削刃产生塑性变形、粘结与扩散磨损。</div><div><br></div><div> 3.切削力大。高温合金强度比汽轮机常用合金钢材料高30%以上，在600℃以上的切削温度下，镍基高温合金材料的强度仍高于普通合金钢材料。未强化处理的高温合金单位切削力在4000N/mm2以上，而普通合金钢仅2500N/mm2。</div><div><br></div><div> 4.镍基合金主要成份为镍和铬，另外还添加有少量其它元素：钼、钽、铌、钨等，值得注意的是，钽、铌、钨等也是用来制造硬质合金(或高速钢)氧化先端丝锥的主要成分，用这些氧化先端丝锥加工高温合金会产生扩散磨损和磨料磨损。</div><div><br></div><div> 激光行业看上去发展前景可观，但是随着相同行业不断增加，竞争对手日益增多，激光设备市场出现供大于求的局面。所以，激光设备<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>商务的发展确实帮助传统工业<a href="http://b.oecr.com/company" target="_blank" class="relatedlink">企业</a>改变生产方式，更深层次面讲开发了另一个工业品市场，而且还避免出现了<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>积压，生产无规则等问题的发生。因为通过采购网站寻找大买家，一般都是通过大买家发布采购需求进行生产制造，这样不仅满足大买家采购需求的标准，更为企业供应商省下资金研发核心技术，提升产品性能做出保障，以赢得更多盈利增长。</div><div style="text-align: center;"><p><a href="data/attachment/portal/201603/08/144224pfraiafiufssmz2p.jpg" target="_blank"><img src="data/attachment/portal/201603/08/144224pfraiafiufssmz2p.jpg"></a></p><p class="MsoNormal" style="text-align: center;"><span style="mso-spacerun:'yes';font-family:宋体;font-size:10.5000pt;mso-font-kerning:0.0000pt;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a href="http://www.oecr.com/portal.php?mod=list&catid=62" target="_blank" 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