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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=57" 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">武汉梅曼激光开发出用于旋转钻微孔的电光调Q端面泵浦激光器 </h1> <p class="xg1"> 时间：2010-7-23 16:08<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1793)</em> 评论: 0</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=57" 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>与线切割放电加工，化学蚀刻，机械加工/切割，电铸，以及其他加工技术相比，激光打孔设备的性能要好，这是因为激光加工是非接触式的，并且更灵活。此外，加工过程所受的限制更少，不需要进行昂贵的废弃物处理，工具的 ...</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"> 近日，武汉梅曼<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>有限公司自行研制成功用于旋转钻微孔的电光调Q端面泵浦激光器。<BR><BR><a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>元件、<a href="http://medicine.oecr.com" target="_blank" class="relatedlink">医疗</a>设备、<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">传感</a>器、计算机、航空电子等行业制造商在生产具有微型尺寸，复杂的外形和小孔形状的零件，例如：典型的小孔尺寸为50 - 100 μm。与线切割放电<a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>，化学蚀刻，<a href="http://machine.oecr.com" target="_blank" class="relatedlink">机械</a>加工/切割，电铸，以及其他加工技术相比，激光打孔设备的性能要好，这是因为激光加工是非接触式的，并且更灵活。此外，加工过程所受的限制更少，不需要进行昂贵的废弃物处理，工具的成本也更合理。与放电加工相比，激光打孔能够得到更高的深度直径比，此外，它能够对各种<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>进行打孔，包括陶瓷、硅、钻石和聚合物。<BR><BR>采用传统的激光冲击钻方式能够得到较高的钻孔速度，但是，因为激光加工主要是个加热过程，激光冲击钻孔导致孔内残留有熔化层。由高强度的激光脉冲熔化或者汽化的材料在蒸汽传送出去以前，会在孔壁上凝结或者重铸。采用超短脉冲（皮秒和飞秒量级）激光时所产生的热渗透深度浅，然而仍会残留熔化层，并且生产效率低。<BR><BR>采用紧密聚焦的短脉冲激光束，沿着中心点旋转，严格的描绘出小孔的几何外型。打孔过程中，每一小部分材料相继的被蒸发，范围限定得很好的激光脉冲被旋转和重叠使用。使用这项打孔技术时，在整个打孔过程中，孔壁一直被加热，这就阻止了重新凝固的过程，因此，使用激光旋转打孔的技术可以提高加工质量和加工效率。<BR><BR>用于旋转钻微孔的电光调Q端面泵浦激光器，其主要参数如下： <BR><BR>激光波长：532nm；工作频率：≤10kHz；平均功率：１W(2kHz)；脉冲宽度：≤8ns峰值功率：≥60KW。<BR><BR>为了进行旋转式打孔，专门打孔的光学装置能够以可变的旋转直径来旋转激光光束。这些光学装置包括振镜扫描仪、旋转楔形棱镜等。<BR><BR>钻孔效果：对塑性材料微钻孔，激光功率为0.6W，重复频率为2kHz，脉冲宽度为6.5ns。采用振镜扫描方式。钻直径为200μm的微孔，孔边缘光滑，无毛刺，热影响区小。</td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div 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