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Tool and Die Design for Beginnners; A Practical Handbook for the Beginner in the Fields of Tool Design, Die Making, and Metal Stamping, with Typical P, Shailor, Frank E.
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Author Name:    Shailor, Frank E.

Title:   Tool and Die Design for Beginnners; A Practical Handbook for the Beginner in the Fields of Tool Design, Die Making, and Metal Stamping, with Typical P

Binding:   PAPERBACK

Book Condition:   New

Publisher:    RareBooksClub.com 

ISBN Number:   1236594908 / 9781236594907

Seller ID:   ING9781236594907

1236594908 Special order direct from the distributor

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 edition. Excerpt: ... one shoe to another. SUB-PRESS DIES Typical Features. Plain blanking dies as described this far are of the simpler type and are used only where a variation in blanks is permissible, for any die that allows the blanks to pass clear through is given clearance, and each time the die is ground the die becomes larger. With sub-press dies--sometimes called compound dies--the outside diameter or size of blank does not change, as the dies are made without clearance, for the blank only enters the die about half the thickness of the stock being punched, then the blank is forced back into the strip. Before entering upon the making of a sub-press die, it is well to thoroughly understand the working t f this type of die which in some instances is quite complicated. The term sub-press die means that the punch and die are mounted in a sub-press, or, to make it plainer, the punch and die work within a frame which has a babbitted bearing to guide the plunger to which the blanking die and piercing punches are attached, and this frame or sub-press is in turn actuated by a power press. Fig. 363, Tool-Making, Part III, is an excellent illustration of the working principle of sub-press construction in its simplest form. Bear in mind that this die is a sub-press in principle only. Referring to this illustration it is noted that the blanking die A is mounted on the upper portion, which is characteristic of all sub-press construction. The blanking punch B also contains the piercing die C, and inside the blanking die A and surrounded by the upper stripper E is. the piercing punch D. The lower stripper F surrounds the blanking punch. Operation. In operation the stock is placed on top of stripper F, and as the upper portion descends blanking punch B enters blanking die A, ..



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