What is Stamping?

Sheet Metal Stamping Process

• Blanking

  This step uses a die to cut the entire sheet into the desired preliminary shape or size.

  
  

• Punching

  Punching is the process of punching holes or openings in a metal sheet. The desired hole shape is punched out by applying pressure between the punch head and the die of the punch press.

  
  

• Bending

  Bending is the process of bending a metal sheet into a certain angle or shape.

  
  

• Drawing

  The drawing process is the process of pulling a flat blank into a hollow part or a complex curved part.

  
  

• Ironing

  Ironing is a stamping process that reduces the thickness of a metal sheet in a specific area. Through the ironing process, the thickness of a material can be reduced in a specific part while maintaining or increasing the strength of other parts.

  
  

• Hemming

  Hemming is a stamping process that folds or curls the edge of a metal sheet. Hemming is usually used to connect two metal parts or make the edge smoother and safer.

  
  

• Forming

  The forming process is to apply further deformation force to the metal sheet through the die to achieve the final shape and size requirements.

  
  

• Flanging

  Flanging is the process of folding or curling the edge of the workpiece inward or outward.

  
  

• Trimming

  The trimming process is to remove excess edge material or burrs during the stamping process to ensure that the part has a smooth appearance and neat edges. 

  
  

• Compound Operations

  In the manufacturing process of some complex parts, it may be necessary to combine the above processes together, which is called a compound process.

  
  

• Coining

  Coining is a process step to make fine adjustments to the already formed workpiece to ensure that it reaches the exact size and shape.