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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">光纤激光器对垫片材料切割测试 </h1> <p class="xg1"> 时间：2016-1-18 11:12<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1895)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=3852&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>为了使垫片的厚度达到要求的精度，客户可能还需要剥离一两层层压材料，使垫片能够精确地配合安装空间，以前垫片是机械加工生产的，但机械加工的问题是速度太慢了，而且机械加工很容易会使部分层压层受到破坏，例如最 ...</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"><font face="宋体" size="3"> </font><p align="center" style="margin: 0cm 0cm 0pt; text-indent: 21pt; mso-char-indent-count: 2.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;"><a class="opattach" href="javascript:;"><font face="Tahoma"><img width="322" height="276" class="cur1" style="width: 444px; height: 407px;" onclick="insertImage('data/attachment/portal/201601/18/111932gf310o9lco64o431.jpg');" src="http://www.oecr.com/data/attachment/portal/201601/18/111932gf310o9lco64o431.jpg.thumb.jpg"> </font></a></span></p><p style="margin: 0cm 0cm 0pt; text-indent: 21pt; mso-char-indent-count: 2.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">为了使垫片的厚度达到要求的精度，客户可能还需要剥离一两层层压<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>，使垫片能够精确地配合安装空间，以前垫片是<a href="http://machine.oecr.com" target="_blank" class="relatedlink">机械</a><a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>生产的，但机械加工的问题是速度太慢了，而且机械加工很容易会使部分层压层受到破坏，例如最上面一层会剥落。于是，成本问题及机械加工生产垫片带来的问题使客户寻求更好的解决方法，尝试用光纤<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>进行切割。</span><font face="Calibri"> </font></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">用不锈钢和铝质材料的一种用于制作航空航天业所用的层压材料垫片进行<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a>，该材料的基材为</span><font face="Calibri"><span lang="EN-US">0.762mm</span></font><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">，上面层压了几层</span><font face="Calibri"><span lang="EN-US">0.076mm</span></font><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">的层压材料，垫片的总厚度为</span><font face="Calibri"><span lang="EN-US">1.524mm</span></font><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">首先测试切割了样片以确定切割参数，然后进行了实际部件的切割测试。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">过程中用多种方法进行了测试，也包括从层压层正面和背面分别切割时哪种方式能获得更好的切割效果。切割薄板时要特别注意，要精确地设置参数，已确保不会把切割边缘焊接在一起，如果切割边缘被焊在一起，就无法剥离层压层了。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">用了各种不同的参数测试了大量样件，从层压层正面切割、背面切割、不同的切割速度，最终确认光纤激光器能在避免焊接切割边缘和破坏层压层的情况下对垫片进行切割。这种情况下，光纤激光器切割速度，从铝质垫片背面切割时，可以达到</span><font face="Calibri"><span lang="EN-US">22.86m/min</span></font><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">，对不锈钢垫片切割时，速度可以达到</span><font face="Calibri"><span lang="EN-US">3.048m/min。</span></font></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">尽管已经证明了光纤激光器可以切割垫片，但航空航天行业客户自己必须进行一些测试。“他们担心疲劳性能”</span><font face="Calibri"> </font><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">“由于这些材料通常不用典型的热加工切割，就必须测试切割<a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>中的热影响是否增加故障的可能性。很明显通常采用的机械工艺不会产生热影响。”</span><font face="Calibri"> </font></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">那么，切割薄片材料时光纤激光切割机需要如何做呢？其实需要做的是如何连接激光光束传输系统，不同的光束直径、准直长度，镜片和焦距组合在一起会影响光束对材料的作用。调整好参数才能正确应用。</span></p><font face="宋体" size="3"> </font><p style="margin: 0cm 0cm 0pt; text-indent: 10.5pt; mso-char-indent-count: 1.0;"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin;">所有的因素会产生综合作用，适合某种材料的参数或许在切割另一种材料时就需要进行调整。对于薄片材料，功率和聚焦镜是最重要的因素。</span></p><font face="宋体" size="3"> </font></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> 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