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</span></td> <td width="68" bgcolor="#FFFFFF"><input name="Submit" type="submit" class="wz" value="搜 索" /></td> </tr> </table></td> </tr> </form> </table> </td> </tr> </table> <table width="499" border="0" cellpadding="0" cellspacing="0" class="wz"> <tr> <td width="70%" height="100" valign="top"><table width="782" border="0" cellpadding="0" cellspacing="0" class="wz"> <tr> <td height="68" valign="top"><table width="100%" border="0" cellpadding="1" cellspacing="0" class="wenxianborder"> <tr> <td height="30" align="center"><table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#EEF6FF"> <tr> <td height="27" align="center" class="bigword1">精锻产品精度预测技术的研究现状 </td> </tr> </table></td> </tr> <tr> <td align="center"> <div style="MARGIN-TOP:5px; TEXT-ALIGN: center"></div> <table width="95%" border="0" cellspacing="0" cellpadding="2" class="border"> <tr> <td width="19%" height="25" align="right" valign="top">关键词：</td> <td width="81%" height="25" align="left" valign="top">精密成形,数值模拟,精度预测,模具</td> </tr> <tr> <td height="25" align="right" valign="top">新闻摘要：</td> <td height="25" align="left" valign="top">发展和应用精密成形技术是一个节约能源、节约材料、提高效率的有效途径。精锻技术在汽车、宇航、机械、电子等支柱产业的发展中得到了广泛的应用。本文从成形件的弹性变形、模具的弹性变形、模具的磨损以及热胀冷缩几个方面综合论述了精锻产品精度预测技术的研究现状及存在的问题，并对其未来可能的发展趋势进行了分析和探讨。</td> </tr> <tr> <td height="25" align="right" valign="top">英文关键词：</td> <td height="25" align="left" valign="top">precision forming,numerical simulation,precision prediction,die</td> </tr> <tr> <td height="25" align="right" valign="top">英文摘要：</td> <td height="25" align="left" valign="top">Precision forming technology has the unique advantages compared to the traditional machining technology，for example，saving energy and material as well as increasing the efficiency．It has been used widely in automotive，aerospace，mechanical and electronic industry for its efficiency and precision．In this paper，the advance of precision forging parts accuracy prediction technology is systematically illustrated in the aspects of part elastic deform ation，dies elastic deform ation，die wear，therm al expansion and shrinkage of part and die．Some problems of precision forging products accuracy prediction technology have been expounded based on present research．It also analyzes and discusses the development trends．</td> </tr> </table> <div style="MARGIN-TOP:10px; TEXT-ALIGN: center"></div> <table width="99%" border="0" cellspacing="0" cellpadding="0"> <tr> <td class="14word"> <P align=center><IMG src=Http://Webpic.duanxie.cn/200962613532988.gif border=0><BR><div align=center>[<font color=red>1</font>] [<a href=?id=668&CurPage=2>2</a>] [<a href=?id=668&CurPage=3>3</a>] </div> </td> </tr> </table></td> </tr> </table></td> </tr> <tr> <td height="110" align="left" valign="middle"> <div style="MARGIN-TOP:5px; TEXT-ALIGN: center"></div> <table width="80%" border="0" cellspacing="0" cellpadding="0"> <tr> <td height="25"><span class="red1">注:中国锻压文献数据库为非盈利项目，文章仅供行业内人员交流学习使用。</span></td> </tr> </table> <div style="MARGIN-TOP:5px; TEXT-ALIGN: center"></div> <table width="100%" height="102" border="0" cellpadding="2" cellspacing="0" bgcolor="#fafafa" class="boder"> <tr> <td width="100%" height="25">作 者：上海交通大学模具CAD／CAM国家工程研究中心 李振红 杨慧 黄英娜 张质良 </td> </tr> <tr> <td height="25">发布时间：2009年6月26日</td> </tr> <tr> <td height="25">发表日期：2005年6月30日</td> </tr> <tr> <td height="25">文献来源：《锻压技术》</td> </tr> </table></td> </tr> </table></td> </tr> </table> <link href="../css.css" rel="stylesheet" type="text/css" /> <center> <table width="780" border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF"> <tr> <td height="94" align="center" valign="middle"><span class="yword"><a href="http://www.duanxie.cn/chinese/map.asp" target="_blank" class="lj">网站地图</a>||<a href="http://www.duanxie.cn/chinese/member_service.asp" target="_blank" class="lj">会员服务</a>||<a href="http://www.duanxie.cn/chinese/Information-refer.asp" target="_blank" class="lj">信息咨询&联系我们</a>||<a href="http://www.duanxie.cn/chinese/job/index.asp" 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