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Manufacturing Engineering SectionMechanical Engineering Department

Indian Institute of Technology Madras

Email: nrbabu@iitm.ac.in

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SHEET METAL FORMING

OPERATIONS – BENDING

Part-3 

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BEND SEQUENCE DETERMINATION:

•  It focuses on determining an optimal bend sequence from the set of feasible bend sequences.

• A part with many bends has many feasible bend sequences. A feasible bend sequence refers to a

sequence without any collision during the bending process.

• A collision may be self or with tool or with machine parts. It is described in the figure below. 

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TOOLING LAYOUT ON PRESS BRAKE:

• Tooling layout implies determining the actual locations of all tools that need to be mounted on the

machine.

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An optimized tool layout reduces the total travel distance of an operator during the process. 

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GAUGE POSITION DETERMINATION:

• Back gauges helps in placing the sheet accurately in position by providing support from the back

side of the machine.

•  The position of back gauge for each bend need to be determined.  

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