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Book Chapter

Blanking

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.
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(a) A2 tool steel <span class="search-highlight">blanking</span> die, 63 mm (2½ in.) in diameter by 13 mm (½ in.)...

(a) A2 tool steel blanking die, 63 mm (2½ in.) in diameter by 13 mm (½ in.)...

in Failure Analysis in Tool Steels > Failure Analysis of Heat Treated Steel Components
Published: 01 September 2008
Fig. 15 (a) A2 tool steel blanking die, 63 mm (2½ in.) in diameter by 13 mm (½ in.) thick, that cracked in service because of a brittle zone that had formed during electrical discharge machining (EDM) of the cavity at center. Arrows point to cracks emanating from the cavity. Source: Ref 7 More
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<span class="search-highlight">Blanking</span> and piercing

Blanking and piercing

in Aluminum Alloys > Lightweight Materials: Understanding the Basics
Published: 01 October 2012
Fig. 2.15 Blanking and piercing More
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Relief in a <span class="search-highlight">blanking</span> die. Source: Ref 4

Relief in a blanking die. Source: Ref 4

in Forming > Metals Fabrication: Understanding the Basics
Published: 01 November 2013
Fig. 7 Relief in a blanking die. Source: Ref 4 More
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Typical tooling setup for fine-edge <span class="search-highlight">blanking</span> a simple shape. Source: Ref 6...

Typical tooling setup for fine-edge blanking a simple shape. Source: Ref 6...

in Forming > Metals Fabrication: Understanding the Basics
Published: 01 November 2013
Fig. 11 Typical tooling setup for fine-edge blanking a simple shape. Source: Ref 6 More
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<span class="search-highlight">Blanking</span>. Source: Ref 2.4

Blanking. Source: Ref 2.4

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
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Snap-through. (a) Load-time curve for typical <span class="search-highlight">blanking</span> operation. Source: R...

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

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
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Relation between noise level and stopping position of punch in <span class="search-highlight">blanking</span> hig...

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

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
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Burr height sheet thickness ratio obtained in <span class="search-highlight">blanking</span> with a servo and con...

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

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 <span class="search-highlight">blanking</span> (tool design by Todo Kogyo). Source...

Tooling designed for precision blanking (tool design by Todo Kogyo). Source...

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
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Process sequence in precision <span class="search-highlight">blanking</span>. Source: Ref 11.15

Process sequence in precision blanking. Source: Ref 11.15

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
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Hydraulic fine <span class="search-highlight">blanking</span> press. Source: Ref 12.1

Hydraulic fine blanking press. Source: Ref 12.1

in Hydraulic Presses > Sheet Metal Forming: Fundamentals
Published: 01 August 2012
Fig. 12.21 Hydraulic fine blanking press. Source: Ref 12.1 More
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Schematic of <span class="search-highlight">blanking</span> and piercing

Schematic of blanking and piercing

in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.1 Schematic of blanking and piercing More
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Phases of the <span class="search-highlight">blanking</span> process. Source: Ref 1.1

Phases of the blanking process. Source: Ref 1.1

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
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Force distribution in the workpiece during <span class="search-highlight">blanking</span>. Source: Ref 1.2

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

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
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Load-stroke curve of a <span class="search-highlight">blanking</span>&#x2F;piercing operation

Load-stroke curve of a blanking/piercing operation

in Blanking > Sheet Metal Forming: Processes and Applications
Published: 01 August 2012
Fig. 1.4 Load-stroke curve of a blanking/piercing operation More
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Punch geometries used in <span class="search-highlight">blanking</span>. Adapted from Ref 1.3

Punch geometries used in blanking. Adapted from Ref 1.3

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
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Effect of punch-die clearance on part edge quality in <span class="search-highlight">blanking</span> DP590 steel ...

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

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
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Effect of tool wear and <span class="search-highlight">blanking</span> clearance on part edge quality as predicte...

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

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
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Die geometries and sheared dies used in <span class="search-highlight">blanking</span>. Adapted from Ref 1.3 , ...

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

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