Wednesday, February 10, 2010

METAL STAMPING DIE TERMINOLOGY

Blankholder - a mechanism that prevents a blank from moving during a draw process

Bolster plate - a plate attached to the press bed that locates and holds the die shoe in place.

Die button - also called a die bushing, is a tube or sleeve that makes the opening for a piercing punch. The slug passes through the die button.

Die retainer - A hardened steel block that contains the impressions or cavities that shape the part as the punch descends, and also holds the die button.

Die shoe - also referred to as a die holder. A lower die shoe is the lower plate of a die set that supports the die retainer and die button. The upper die shoe is the upper plate of a die set that secures the punch retainer.

Guide post (or guide pins) - a steel rod positioned in the lower die shoe that fits into a bushing in the upper die shoe to guide the punch during operation, allowing precise alignment. The guide post bushing is a steel tube that directs the upper die shoe.

Knock out - A punch that ejects the part in a form die.

Lifter - a feature that lifts the part stock over lower tooling features as the stock is conveyed through a progressive die.

Pilot - a long slender punch that enters the part stock before other tools form the metal, to assure station to station alignment.

Pressure Pad - a metal pad or plate loaded with a gas spring or high pressure coils. A pressure pad is used to tightly hold metal being processed to the lower die shoe before the forming punch strikes.

Punch - the tool attached to the upper die set that forms or penetrates the part stock

Punch retainer - a device used to mount the punch on the upper die shoe.

Secondary operations - treatments performed after the initial metal stamping process. Cleaning, heat treating, plating or deburring.

Stop block - a block used to act as a reference point for the height of the tool set up.

Stripper plate - a thin plate designed to surround a punch that strips the scrap from the punch.

2 comments:

  1. Is there any real difference in metal stamping and roll forming?

    I'm not sure I know the difference between the two. I've read articles on Roll Forming (Samco Machinery seems to be a leader http://www.samco-machinery.com) on Industrial Machinery News (http://www.industrial-machinery-news.com) that talk a lot about rollformers.

    I'd like to hear your comments on the difference of these two technologies.

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  2. Hai Tong Metal Products limited provides many kinds of dies for example single station dies, several station dies, compound dies, progressive dies and conjunction press lines.

    metal stamping die

    ReplyDelete