Die Design HandbookWhether you're involved in a highly specialized operation, or need comprehensive information on many types of die designs, this book is your best bet book on how to design dies. Hundreds of illustrations on proven designs are included, as well as hundreds of tables and equations to help you make quick calculations for allowances, pressures, forces and more. |
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Table des matières
| 2-1 | |
| 3-1 | |
SHEAR ACTION IN METAL CUTTING | 4-1 |
CUTTING DIES | 5-1 |
BENDING OF METALS | 6-1 |
BENDING DIES | 7-1 |
METAL MOVEMENT IN FORMING | 8-1 |
FORMING DIES | 9-1 |
PROGRESSIVE DIES | 17-1 |
COMPOUND AND COMBINATION DIES | 18-1 |
DESIGNING PRESSTOOLS FOR FINEBLANKING | 19-1 |
TOOLS FOR MULTIPLE SLIDE FORMING MACHINES | 20-1 |
LOWCOST AND MISCELLANEOUS DIES | 21-1 |
DIE SETS AND COMPONENTS | 22-1 |
DESIGNING DIES FOR AUTOMATION | 35 |
SECTION 24 DIE MAINTENANCE SETTING AND TRYOUT | 27 |
DISPLACEMENT OF METAL IN DRAWING | 9-69 |
PRODUCT DEVELOPMENT FOR DEEP DRAWING | 11-1 |
DRAW DIES | 12-1 |
DIES FOR LARGE AND IRREGULAR SHAPES | 13-1 |
RUBBERPAD AND HYDRAULICACTION DIES | 14-1 |
COMPRESSION DIES | 15-1 |
SECTION 16 PROGRESSIVE DIE DESIGN | 16-1 |
LUBRICANTS FOR PRESSWORKING OPERATIONS | 25-1 |
DIE PROTECTION SYSTEMS | 26-1 |
PRESS DATA | 27-1 |
FERROUS DIE MATERIALS | 28-1 |
NONFERROUS AND NONMETALLIC DIE MATERIALS | 29-1 |
INDEX | I-1 |
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Expressions et termes fréquents
actuated alloys aluminum amount angle annealed beads bend blank blankholder bottom carbide cast cavity clearance compressive contour corner curling cutoff cylinder deflection diameter die sections draw ring edge ejection embossing Engineering extruded factor feed finished flange flat force form block forming operations forming punch gages hardened holes idle stations inserts knockout laser cutting load lubricant machine material metal flow method minimum National Steel Corporation notches piercing pilot pins plastic plate position pressure pad pressworking produce progressive die punch Dl radii radius reduce rubber Section A-A sensor shape shear shear strength sheet shell shown in Fig shut height side single-action slide slot slug spring spring-loaded springback stamping station stock thickness strain strength stretch flange strip stripper stroke surface swaging temperature tensile tensile strength tonnage tool steel tramp oil trimming tube urethane welding width workpiece yield strength
Fréquemment cités
Page 1-9 - Distance from the top of the bed to the bottom of the slide with the stroke down and adjustment up. In general, the shut height of a press is the maximum die height that can be accommodated for normal operation, taking the bolster thickness and any fillers into consideration.
Page 1-1 - Carburizing — A process that introduces carbon into a solid ferrous alloy by heating the metal in contact with a carbonaceous material — solid, liquid or gas — to a temperature above the transformation range and holding at that temperature. Carburizing is generally followed by quenching to produce a hardened case.
Page 1-1 - ... bending The straining of material, usually flat sheet or strip metal, by moving it around a straight axis which lies in the neutral plane. Metal flow takes place within the plastic range of the metal, so that the bent part retains a permanent set after removal of the applied stress. The cross section of the bend inward from the neutral plane is in compression; the rest of the bend is in tension.
Page 1-4 - In metal forming, a circular plate with a hole in the center contoured to fit a forming punch; used to support the blank during the forming cycle.
Page 9-74 - D = blank diameter d = shell diameter /,- = shell height r = corner radius The above equations are based on the assumption that the surface area of the blank is equal to the surface area of the finished shell. In cases where the shell wall is to be ironed thinner than the shell bottom, the volume of metal in the blank must equal the volume of the metal in the finished shell. Where the wall-thickness reduction is considerable, as in brass shell cases, the final blank size is developed by trial. A...
Page 9-86 - ... -stroke curve where the metal thickness is slightly greater than the clearance and ironing starts. Redrawing operations require greater clearance, in relation to blank thickness, than the first draw, to compensate for the increase in metal thickness during cupping. A sizing redraw is used where the diameter or wall thickness is important or where it is necessary to improve surface finish to reduce finishing costs. The clearance used is less than that for the first draw. Table 5 lists clearances...
Page 1-3 - A casting made in a die. (2) A casting process where molten metal is forced under high pressure into the cavity of a metal mold. die clearance. Clearance between a mated punch and die; commonly expressed as clearance per side. Also called clearance, punch-to-die clearance. die cushion. A press accessory located beneath or within a bolster or die block to provide an additional motion or pressure for stamping operations; actuated by air, oil, rubber or springs, or by a combination thereof. die forging....
Page 2-23 - In designing stampings with punched holes, it is well to. take into account the fact that only about one-half the thickness of the metal is sheared cleanly to the size of the punch. The rest is torn out by the pressure exerted on the sheared slug. This produces a rough hole tapering in diameter to the size of the punch plus about 10% of the metal thickness (see Figure 6B-1).
Page 9-96 - Fig. 33. Diagrams Showing Relation Between the Corners of Firstand Second-operation Dies for Square or Rectangular Work be enough surface x between the two corners to provide a drawing edge. The reason for selecting such a large corner radius for the first die is that when these large corners are reduced to the smaller radius in the second die, a large part of this compressed metal is forced out into the sides of the box. Now if the first die were laid out as indicated at B or from the same center...
Page 2-25 - ... embossment much larger than the hole, then by successive steps forming the desired flange, and finally punching out the hole. This method increases costs and its use should be limited. One way of accomplishing this is to keep the specified flange width at an absolute minimum at all times. A...
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Informations bibliographiques
| Titre | Die Design Handbook |
| Auteur | David Alkire Smith |
| Rédacteur | David Alkire Smith |
| Collaborateur | David Alkire Smith |
| Édition | illustrée |
| Éditeur | Society of Manufacturing Engineers, 1990 |
| ISBN | 0872633756, 9780872633759 |
| Longueur | 928 pages |
| Exporter la citation | BiBTeX EndNote RefMan |