ÿþ <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>Draw die radius---Higrade(Qingdao) Moulds & Products Co., Ltd. China stamping die,higrade stamping die|China press die ÿChina progressive company/manufacture/supplier,China sheet metal parts</title> <meta name="keywords" content="Draw die radius,China stamping die |China press die ÿChina progressive company ÿmanufacture,supplier,China sheet metal parts"> <meta name="description" content="Located in Qingdao, China, Higrade Stamping specializes in stamping die, progressive die, sheet metal parts, including stainless steel/iron stamping parts, Galvanized sheet stamped parts,and so on.Excellent stamping die manufacturer, supplier."> <link href="../css.css" rel="stylesheet" type="text/css"> <script> function autoResize() { try { document.all["test"].style.height=test.document.body.scrollHeight document.all["testbottom"].style.height=testbottom.document.body.scrollHeight document.all["testtop"].style.height=testtop.document.body.scrollHeight } catch(e){} } </script> </head> <body bgcolor="#FFFFFF" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"> <!-- ImageReady Slices (-1) --> <table width="1003" border="0" align="center" cellpadding="0" cellspacing="0" id="__"> <tr> <td colspan="2"><iframe id=testtop style="height:expression(1); aho:expression(autoResize())" src="../top1.asp" scrolling="no" frameborder="0" width="100%"></iframe></td> </tr> <tr> <td width="260" valign="top" background="../images/index_06.jpg" bgcolor="#FAFAFA" style="background-position:top; background-repeat:repeat-x;"><iframe id=test style="height:expression(1); aho:expression(autoResize())" src="../left2.asp" scrolling="no" frameborder="0" width="260"></iframe></td> <td align="center" valign="top" background="../images/index_07.jpg" bgcolor="#FFFFFF" style="background-position:top; background-repeat:repeat-x;"><table width="660" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td height="30"></td> </tr> <tr> <td height="35" background="../images/title.gif" style="background-repeat:no-repeat;"><table width="560" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="44"></td> <td width="328" height="30" valign="top" class="STYLE9-2"><div align="left">News Center</div></td> <td width="188"></td> </tr> </table></td> </tr> <tr> <td height="10" class="STYLE6"></td> </tr> <tr> <td class="STYLE6"><table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="STYLE3_5"> <tr> <td height="35"><div align="center"><strong>Draw die radius</strong></div></td> </tr> <tr> <td><div align="center"> <table width="90%" border="0" cellspacing="0" cellpadding="0"> <tr> <td class="STYLE6"><P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>The size of the draw die radius is one of the major factors affecting&nbsp;metal to draw properly. If the radius is too large, wrinkles will occur on the part. If the radius is too small, it will&nbsp;restrict the flow of the material and cause cracking to the part.</FONT></P> <P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial></FONT>&nbsp;</P> <P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>As a general rule, three ( 3 ) times the material thickness can be used for the starting point of the draw die radius. If the part cracked or showing evidence of splitting after drawn, the die radius can be enlarged further.</FONT></P> <P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial></FONT>&nbsp;</P> <P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>The table below is the general guide line extracted from some of the tool design books. We have tested it through some years, it work just fine with us. Readers may like to take it as reference for their tool design consideration.</FONT></P> <P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial></FONT>&nbsp;</P> <P style="WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial></FONT>&nbsp;</P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><STRONG><FONT size=3 face=Arial>Material Thickness ( inch ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Draw radius ( inch )</FONT></STRONG></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.015-0.020&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.156  0.250</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.021-0.030&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.187  0.281</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.031-0.040&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.187  0.312</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.041-0.050&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.187  0.343</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.051-0.062&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.250  0.375</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.063-0.093&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.312  0.437</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial>0.094-0.125&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.344  0.460</FONT></P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial></FONT>&nbsp;</P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=3 face=Arial></FONT>&nbsp;</P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px">&nbsp;</P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=4 face=Arial></FONT>&nbsp;</P> <P style="TEXT-ALIGN: center; WIDOWS: 2; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/18px Simsun; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(68,68,68); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"><FONT size=4 face=Arial> <TABLE border=0 width="100%"> <TBODY> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A style="CURSOR: hand" href="http://higradegroup.com/news/newsen169.htm" target=_blank>Modern fast economy manufacture mol...</A></DIV></TD> <TD bgColor=#f9f9f9 height=30 width="33%"> <DIV align=center>2012-1-9</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A style="CURSOR: hand" href="http://higradegroup.com/news/newsen168.htm" target=_blank>Modern fast economy manufacture mol...</A></DIV></TD> <TD bgColor=#f9f9f9 height=30 width="33%"> <DIV align=center>2011-12-28</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A href="http://higradegroup.com/news/newsen167.htm" target=_blank>Christmas celebrations in the West ...</A></DIV></TD> <TD bgColor=#f9f9f9 height=30 width="33%"> <DIV align=center>2011-12-21</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A style="CURSOR: hand" href="http://higradegroup.com/news/newsen166.htm" target=_blank>Selecting the Best Hot Stamping Die...</A></DIV></TD> <TD bgColor=#f9f9f9 height=30 width="33%"> <DIV align=center>2011-12-18</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A style="CURSOR: hand" href="http://higradegroup.com/news/newsen164.htm" target=_blank>China tooling in Australia, have ob...</A></DIV></TD> <TD bgColor=#f9f9f9 height=30 width="33%"> <DIV align=center>2011-12-7</DIV></TD></TR> <TR> <TD bgColor=#f9f9f9 height=30> <DIV align=center><A style="CURSOR: hand" href="http://higradegroup.com/news/newsen163.htm" target=_blank>Stainless Steel Surface Treatment </A></DIV></TD> <TD bgColor=#f9f9f9 height=30 width="33%"> <DIV align=center>2011-12-1</DIV></TD></TR></TBODY></TABLE></FONT></P></td> </tr> </table> </div></td> </tr> <tr> <td><div align="center"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="75%" height="35" align="left"><div align="center">Author:Higrade</div></td> <td align="center"><div align="center">Time:2012-2-20</div></td> </tr> </table> </div></td> </tr> </table></td> </tr> <tr> <td>&nbsp;</td> </tr> </table></td> </tr> </table> <table width="1003" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td>&nbsp;</td> </tr> <tr> <td bgcolor="#1B80B4"><iframe id=testbottom style="height:expression(1); 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