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punch

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Published: 01 January 2005
Fig. 6 Backward extrusion punch. A, nose angle; B, punch land; C, corner radius; D, relief angle More
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Published: 30 September 2015
Fig. 16 Punch compression. P is total punch load, L is length, Y is deflection, A is area of punch, and E is Young's modulus. More
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Published: 01 January 2006
Fig. 8 Punch force trajectories for samples 6 to 10 without process control. Punch force trajectories using constant binder force of 575 kN (65 tonf) More
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Published: 01 January 2006
Fig. 11 Punch force plots using process control and a reference punch force ( F p ) trajectory More
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Published: 01 January 2006
Fig. 23 Guided punch. Courtesy of Durable Punch and Die Company More
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Published: 01 January 2006
Fig. 58 Three types of failure in deep drawing. (a) Fracture over punch nose; punch nose radius is too sharp. (b) Chevron fracture in wall; die-profile radius is too sharp. (c) Vertical crack in thick-walled cups; die-profile radius may be too sharp, and blank edge may be poor. More
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Published: 01 January 2005
Fig. 13 Basic components of tooling for a flash-trimming press: punch, blade-supporting plate, and plate holder (or shoe), on the top row, and their working combination and the workpiece after trimming, on the bottom row More
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Published: 01 January 2005
Fig. 4 Rapidly increasing pressure with punch travel (decreasing thickness) during forging of pure aluminum (AA1050, 99.5 wt% Al). Note that allowing a small amount of material to be simultaneously extruded upward slightly reduces the forging pressure required. S 0 , diam of the extruded pin More
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Published: 01 January 2005
Fig. 5 Hot forging top blocker punch made from H13. Source: Ref 3 More
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Published: 01 January 2005
Fig. 8 Punch and die layout in a six-station cold former. Courtesy of M. van Thiel, Nedschroef Herentals N.V. More
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Published: 01 January 2005
Fig. 12 Multipass ironing with tapered punch and dies in tandem More
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Published: 01 January 2005
Fig. 31 Cracks initiated at the point of contact between the punch and preform in the original preform design. The preform had a taper of 30° on the inside diameter. More
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Published: 01 January 2005
Fig. 18 Nozzle extrusion, a complex contour forging method. (a) Punch position before extrusion. (b) Punch position after extrusion More
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Published: 01 January 2005
Fig. 27 Blank unacceptably distorted by punch/blank diameter relationship. When the punch diameter is too large in relation to block diameter, it deforms the blank rather than indents it. More
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Published: 01 January 1989
Fig. 10 Traveling wire EDM job. The inside piece is the part to be kept (a punch, for example). If the outside is to be kept, as in a die, the start hole is in the slug. The glue strap keeps the slug from falling and maintains electrical continuity to the finish. More
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Published: 01 January 1990
Fig. 22 CPM 10V punch and copper-beryllium blank used in a progressive stamping operation. Courtesy of Crucible Materials Corporation More
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Published: 01 August 2013
Fig. 10 Residual surface stresses for S5 steel punch. Source: Ref 11 More
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Published: 30 September 2015
Fig. 6 Two-level compaction. (a) Single lower punch when h ≤ H /4. (b) Double lower punches when h > H /4. Source: Ref 3 More
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Published: 30 September 2015
Fig. 14 Effect of compressive stress on tubular punch More
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Published: 30 September 2015
Fig. 15 Tensile stresses in a tubular punch during compacting. Large arrows indicate action of powder on walls of punch. More