[求助]冲压模具英语翻译，12楼以后资料上载-->JUN1969转移

孤峰顶上

Wrinkling that occurs in the stamping of tapered square cups and stepped rectangular cups is investigated. A common characteristic of these two types of wrinkling is that the wrinkles are found at the draw wall that is relatively unsupported. In the stamping of a tapered square cup, the effect of process parameters, such as the die gap and blank-holder force, on the occurrence of wrinkling is examined using finiteelement simulations. The simulation results show that the larger the die gap, the more severe is the wrinkling, and such wrinkling cannot be suppressed by increasing the blank-holder force. In the analysis of wrinkling that occurred in the stamping of a stepped rectangular cup, an actual production part that has a similar type of geometry was examined. The wrinkles found at the draw wall are attributed to the unbalanced stretching of the sheet metal between the punch head and the step edge. An optimum die design for the purpose of eliminating the wrinkles is determined using finite-element analysis. The good agreement between the simulation results and those observed in the wrinkle-free production part validates the accuracy of the finite-element analysis, and demonstrates the advantage of using finite-element analysis for stamping die design.

Draw-wall wrinkle; Stepped rectangular cup; Tapered square cups应如何准确翻译？

[此贴子已经被jiey于2005-2-28 10:47:58编辑过]

jiey

<P>发现自己在学校里的冲压英语忘光了</P><P>去问问高人再来回答 ：）</P>

孤峰顶上

斑竹帮帮忙啊

jiey

<P>你明天来看吧</P>

华哥

辛苦jiey了,[em27][em27][em27]

jiey

<P>嘿嘿</P><P>华哥客气了，既然发到我这里来，帮忙彻底解决问题就是我的职责，何况我自己也很想学习学习</P>

yuns2008

<P>大意是讲有限元模拟可以帮助分析拉伸成形中的褶皱现象（通过凸凹模的间隙die gap、压边力blank-holder force等参数）。没有具体应用的简述。</P><P>非冲压行业，这几个词的翻译仅供参考：</P><P>拉伸壁褶皱；阶梯方盒；锥形方盒（如方料斗）。   finite-element analysis 有限元分析</P>

jiey

<P>yuns008好样的，不愧是咱们silitek出来的 ：） +10 points +1魅力</P><P><FONT color=#000099>下面是我请教的结果：Draw-wall wrinkle(</FONT><FONT color=red>拉延壁褶皱</FONT><FONT color=#000099>); Stepped rectangular cup（</FONT><FONT color=red>分步成型矩形杯</FONT><FONT color=#000099>）; Tapered square cups（</FONT><FONT color=red>锥形方杯</FONT><FONT color=#000099>） </FONT></P><P><FONT color=#000099>个人感觉yuns2008的第二个翻译更合理</FONT></P><P><FONT color=#000099>楼主参考</FONT></P>

孤峰顶上

<P>多谢各位，特别是热心的斑竹</P>
<P>综合楼上两位的意见，我想译为：拉伸壁起皱；阶梯方盒形件；锥形方盒形件</P>
<P>不知是否合理？</P>
<P>还想请网友们帮我翻译那段话，拜托啦</P>

[此贴子已经被作者于2005-2-24 20:31:01编辑过]

jiey

<P>在冲压台阶方盒形件、锥形方盒形件中发生的褶皱现象（的原因）已经被调查出。两种褶皱的共同特点是褶皱都出现在相对无支撑的拉延壁上。冲压锥形方盒形件时，工艺参数如凸凹模间隙和压边力等对产生褶皱的影响可以用有限元分析检查出来。（有限元分析的）模拟结果显示凸凹模间隙越大,褶皱就越严重,并且这种褶皱不能通过增加压边力来消减.在对冲压台阶方盒形件中产生的褶皱的分析中,对一个有相似结构(台阶结构)的实际生产中的零件进行检查.在拉延壁上发现的褶皱归因于在冲头和台阶之间的金属板材受到的拉伸力的不平衡.通过有限元分析能够确定最合理的可以减小褶皱的模具的设计.模拟结果和对不发生褶皱产品的观察结果的吻合验证了有限元分析的精确性,并且证明了对冲压模具设计进行有限元分析的优势所在.</P><P>仅供参考</P>

jiey

<P>很不错的文章</P><P>楼主把整篇都发出来跟大家共享吧</P>

孤峰顶上

感激涕零……

这段文字是《An Analysis of Draw-Wall Wrinkling in a Stamping Die Design》的文摘
作者：F.-K. Chen and Y.-C. Liao
Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan
如果斑竹有空的话，把全文翻译出来给大家分享，那就更好啦
各位网友感兴趣的话也来翻译一下

jiey

楼主哪里找来这么多好文章？

孤峰顶上

我还有好多外文资料，大部分是有关冲压模具的，可惜自己英文水平不好，都不能好好学学
《Wrinkling behaviour of cold-rolled sheet metals when drawing through a tractrix die 》
Journal of Materials Processing Technology Volume: 49, Issue: 1-2, February 1, 1995, pp. 199-211  
Narayanasamy, R.; Sowerby, R.  


网速好慢，就传这两篇吧

jiey

<P>thanks for sharing</P><P>这次就不给你加分</P><P>下次开专帖再传的话重重有奖：）</P>

孤峰顶上

呵呵，我是来求教大家的，不是来赚分的
《Finite element analysis of prestressed die set in cold forging》

华哥

呵呵,我给他加吧,

huy

最该加分的是jiey斑竹！

孤峰顶上

谢谢总斑竹
楼上说的好，总斑竹也该给斑竹加分
<P align=left none? mso-layout-grid-align: 2.0; mso-char-indent-count: left; TEXT-ALIGN: 30pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">12楼《An Analysis of Draw-Wall Wrinkling in a Stamping Die Design》中有段文章我初步翻译如下，请各位指正。</FONT></P>
<P align=left none? mso-layout-grid-align: 2.0; mso-char-indent-count: left; TEXT-ALIGN: 30pt; TEXT-INDENT: 0pt; 0cm><FONT face="Times New Roman">Wrinkling is one of the major defects that occur in the sheet metal forming process. For both functional and visual reasons, wrinkles are usually not acceptable in a finished part. There are three types of wrinkle which frequently occur in the sheet metal forming process: flange wrinkling, wall wrinkling, and elastic buckling of the undeformed area owing to residual elastic compressive stresses. In the forming operation of stamping a complex shape, draw-wall wrinkling means the occurrence of wrinkles in the die cavity. Since the sheet metal in the wall area is relatively unsupported by the tool, the elimination of wall wrinkles is more difficult than the suppression of flange wrinkles. It is well known that additional stretching of the material in the unsupported wall area may prevent wrinkling, and this can be achieved in practice by increasing the blank-holder force; but the application of excessive tensile stresses leads to failure by tearing. Hence, the blank-holder force must lie within a narrow range, above that necessary to suppress wrinkles on the one hand, and below that which produces fracture on the other. This narrow range of blank-holder force is difficult to determine. For wrinkles occurring in the central area of a stamped part with a complex shape, a workable range of blank-holder force does not even exist.</FONT></P>
<P 0cm 0pt?></P>
<P 0cm 0pt?>起皱是金属板料成型中常见的失效形式之一。 由于功能的和视觉效果的原因, 起皱通常不能为零件制品所接受。在金属板料成型加工中通常存在三种类型的起皱现象：法兰起皱，侧壁起皱，和由于残余压应力在未变形区产生的弹性变形。在冲压复杂形状之间时，拉伸壁起皱就是在模具型腔中形成的起皱。由于金属板料在拉伸壁区域内相对无支撑，因此消除拉伸壁起皱比抑制法兰边起皱要难得多。我们知道在不被支撑的拉伸壁区域中材料的外力拉伸可以防止起皱，这可以在实践中通过增加压边力而实现，但是运用过大的拉伸力会引起破裂失效。因此，压边力必须控制在一定的范围内，一方面增抑制起皱，另一方面防止破裂。合适的压边力范围是很难决定的。因为起皱在冲压零件的中心位置以一个复杂的形状形成，甚至不存在一个合适的压边力范围。</P>
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[此贴子已经被作者于2005-2-26 11:10:32编辑过]

华哥

呵呵,他的分我加不合适.,但是我回建议007加给他,如果007不加,那我会把此贴移到五金版块再加给版主jiey的.