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Book Chapter

Blanking

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By Soumya Subramonian
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500001
EISBN: 978-1-62708-317-1
... Abstract This chapter provides an overview of the blanking process and the forces and stresses involved. It discusses the factors that affect part quality and tool life, including punch and die geometry, stagger, clearance, and wear as well as punch velocities, misalignment, and snap-thru...
Abstract
This chapter provides an overview of the blanking process and the forces and stresses involved. It discusses the factors that affect part quality and tool life, including punch and die geometry, stagger, clearance, and wear as well as punch velocities, misalignment, and snap-thru forces. It also discusses ultra-high-speed blanking, fine blanking, and shearing, and the use finite-element simulations to predict part edge quality.
View PDF for content titled, <span class="search-highlight">Blanking</span>
Image

Schematic of blanking and piercing

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.1 Schematic of blanking and piercing More
Image

Phases of the blanking process. Source: Ref 1.1

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.2 Phases of the blanking process. Source: Ref 1.1 More
Image

Force distribution in the workpiece during blanking. Source: Ref 1.2

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.3 Force distribution in the workpiece during blanking. Source: Ref 1.2 More
Image

Load-stroke curve of a blanking/piercing operation

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.4 Load-stroke curve of a blanking/piercing operation More
Image

Punch geometries used in blanking. Adapted from Ref 1.3

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.6 Punch geometries used in blanking. Adapted from Ref 1.3 More
Image

Effect of punch-die clearance on part edge quality in blanking DP590 steel ...

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.8 Effect of punch-die clearance on part edge quality in blanking DP590 steel of 1.4 mm (0.06 in.) thickness. Source: Ref 1.4 More
Image

Effect of tool wear and blanking clearance on part edge quality as predicte...

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.10 Effect of tool wear and blanking clearance on part edge quality as predicted by simulations on 0.58 mm (0.02 in.) thick copper alloy. Source: Ref 1.6 More
Image

Die geometries and sheared dies used in blanking. Adapted from Ref 1.3 , ...

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.12 Die geometries and sheared dies used in blanking. Adapted from Ref 1.3 , 1.8 More
Image

Schematic of fine blanking process. Source: Ref 1.19

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.19 Schematic of fine blanking process. Source: Ref 1.19 More
Image

Stages in the fine blanking process. Source: Ref 1.19

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.20 Stages in the fine blanking process. Source: Ref 1.19 More
Image

Moving and fixed punch systems in fine blanking. Source: Ref 1.1

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.21 Moving and fixed punch systems in fine blanking. Source: Ref 1.1 More
Image

Finite-element model for blanking a circular part

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in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.24 Finite-element model for blanking a circular part More
Image

Blanking and piercing. Source: Ref 8

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in Deformation Processing > Elements of Metallurgy and Engineering Alloys
Published: 01 June 2008
Fig. 16.20 Blanking and piercing. Source: Ref 8 More
Image

Blanking. Source: Ref 2.4

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in Classification and Description of Sheet Metal Forming Operations > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 2.14 Blanking. Source: Ref 2.4 More
Image

Snap-through. (a) Load-time curve for typical blanking operation. Source: R...

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in Principles of Sheet Forming Presses > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 9.18 Snap-through. (a) Load-time curve for typical blanking operation. Source: Ref 28. (b) Effect of snap-through to press motion. Recreated after Ref 9.29 More
Image

Relation between noise level and stopping position of punch in blanking hig...

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in Electromechanical Servo-Drive Presses > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 11.12 Relation between noise level and stopping position of punch in blanking high-strength carbon steel (tensile strength = 440 MPa (64 ksi)) with variable punch speed. Source: Ref 11.13 More
Image

Burr height sheet thickness ratio obtained in blanking with a servo and con...

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in Electromechanical Servo-Drive Presses > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 11.14 Burr height sheet thickness ratio obtained in blanking with a servo and conventional mechanical press. Source: Ref 11.9 More
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Tooling designed for precision blanking (tool design by Todo Kogyo). Source...

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in Electromechanical Servo-Drive Presses > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 11.15 Tooling designed for precision blanking (tool design by Todo Kogyo). Source: Ref 11.9 More
Image

Process sequence in precision blanking. Source: Ref 11.15

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in Electromechanical Servo-Drive Presses > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 11.16 Process sequence in precision blanking. Source: Ref 11.15 More