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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">光电技术百科分享：激光选区烧结技术 </h1> <p class="xg1"> 时间：2016-11-9 11:55<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1816)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=5031&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>激光选区烧结技术是快速成型技术的一种，具有可加工材料范围广且可制作任意复杂三维形状的独特优势。</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"> 光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>在昨天为您分享了关于<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>微立体光刻(mSL)技术的相关知识，今天为大家带来的是激光选区烧结技术的一些介绍。请有兴趣的光学爱好者们看看下面的内容吧。<div><br><div><p style="text-align: center;"><a href="data/attachment/portal/201611/09/115324dw7v7b1bieiwviit.jpg" target="_blank"><img src="data/attachment/portal/201611/09/115324dw7v7b1bieiwviit.jpg"></a></p><p style="text-align: center;"><br></p></div><div> 目前人们尝试用SLS <a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>进行微<a href="http://machine.oecr.com" target="_blank" class="relatedlink">机械</a>的制造。在SLS工艺中，首先在计算机上完成符合需要的三维CAD模型，再用分层<a href="http://opticaldesign.oecr.com" target="_blank" class="relatedlink">软件</a>对其进行分层得到各层截面，采用自动控制技术，使激光有选择地烧结出与计算机内零件截面相对应部分的粉末，使粉末经烧结融化冷却凝固成型。完成一层烧结后再进行下一层烧结，且两层之间烧结相连。激光选区烧结<span style="line-height: 25.2px;">是快速成型技术的一种，具有可<a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a><a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>范围广且可制作任意复杂三维形状的独特优势。</span></div><div><br></div><div> 如此层层烧结、堆积，结果烧结部分恰好是与CAD 原型一致的实体，而未烧结部分则是松散粉末，可以起到支撑的作用，并在最后很容易清理掉。烧结系统的精度受以下因素的影响：激光功率、激光焦斑直径、扫描速度、粉末颗粒直径、粉末的各向异性以及烧结过程中的温度控制等。用SLS 工艺进行三维成形，还可以在一个微结构内集成多种材料完成一定的功能。</div></div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201611/09/115513dt1jzu4uey040eou.jpg" target="_blank"><img src="data/attachment/portal/201611/09/115513dt1jzu4uey040eou.jpg"></a></p><p style="text-align: center;"><br></p><p style="text-align: center;"><span style="line-height: 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