ÿþ <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>Progressive Stamping Die---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="Progressive Stamping Die,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>Progressive Stamping Die</strong></div></td> </tr> <tr> <td><div align="center"> <table width="90%" border="0" cellspacing="0" cellpadding="0"> <tr> <td class="STYLE6"><FONT face=Verdana> <DIV align=left>From Wikipedia, the free encyclopedia</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left><IMG src="/eweb/UploadFile/2008102116430773.jpg" border=0></DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left><A title="Progressive die with strip and punchings" href="http://en.wikipedia.org/wiki/Image:ProgressiveDieToyota-strip-scrap.jpg"></A></DIV> <DIV align=left>Progressive die with strip and punchings</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>A <B>progressive stamping die</B> (<A title="Progressive stamping" href="http://www.higradestamping.com"><FONT color=#0909f7>progressive stamping</FONT></A>) ("die") is a <A title=Metalworking href="http://www.higradestamping.com">metalworking</A> device that is designed and built to convert a strip of <A title=Metal href="http://www.higradestamping.com"><FONT color=#1111ee>metal</FONT></A> raw material into parts that conform to <A title=Blueprint href="http://www.higradestamping.com">blueprint</A> specifications.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>The "dies" are placed into a <A title="Stamping press" href="http://www.higradestamping.com"><FONT color=#1111ee>stamping press</FONT></A><FONT color=#1111ee>.</FONT> As the stamping press moves up, the die opens. As the stamping press moves down, the die closes. The raw material (metal) moves through the die while the die is open, being fed into the die a precise amount with each stroke of the press. When the die closes, the die performs its work on the metal and one or more finished parts are ejected (usually by gravity) from the die. The stamping die can modify the raw material in several ways, such as bending, <A title=Coining href="http://www.higradestamping.com">coining</A>, and punching. Holes that are cut into the raw material can be almost any shape.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>Since additional work is done in each "station" of the die, it is important that the strip be advanced very precisely so that it aligns within a few thousandths of an inch as it moves from station to station. Bullet shaped or conical "pilots" enter previously pierced round holes in the strip to assure this alignment since the feeding mechanism usually cannot provide the necessary precision in feed length.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>The key components of dies are made of <A title="Tool steel" href="http://www.higradestamping.com"><FONT color=#1111ee>tool steel</FONT></A> to withstand the high shock loading involved, retain the necessary sharp cutting edge, and resist the abrasive forces involved.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>The cost is is determined by the amount of features, which determine what tooling will need to be used. It is advised to keep the features as simple as possible to keep the cost of tooling to a minimum. Features that are close together produce a problem because it may not provide enough clearance for the punch, which could result in another station. It can also be problematic to have narrow cuts and protrusions.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>An excellent example of the product of a progressive die is the lid of a beer or soft drink can. The pull tab is made in one progressive die and then automatically mated to the lid which is made in another progressive die.</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left>&nbsp;</DIV> <DIV align=left><A name=External_links></A>&nbsp;</DIV></FONT></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 Stamping</div></td> <td align="center"><div align="center">Time:2007-4-26</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); aho:expression(autoResize())" src="../bottom1.asp" scrolling="no" frameborder="0" width="100%"></iframe></td> </tr> <tr> <td>&nbsp;</td> </tr> </table> <!-- End ImageReady Slices --> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? 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