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#121 Production Technology Improvement Course for Mechanical Designers - 5: Swaging Technology

Category : Automation elements technology
July20, 2012

Products are generally made by functionally assembling various parts. Product design and assembly/production technology enabling stable product quality at low cost (in other words, products that are easy to make) are key to this assembly process. Additionally, environmental considerations call for products that are free of disposal costs. This tutorial describes "swaging technology," a representative assembly component technology.

（1）What is swaging technology?
- Part securing methods include the following: (1) Screw fastening, (2) Adhesives, (3) Press-fitting, (4) Welding, and (5) Swaging.
- Swaging is the deformation of fixing portions of workpieces in order to permanently fix parts to each other.
- There are two types of fixing using swaging: a) fixing parts to each other (Photo 1, Photo 2), and b) fixing parts to each other such that rotary motion is still enabled (Photo 3).

Photo 1: Example of swaging by fixing parts to each other


Photo 2: Example of swaging using magnetic heads


Photo 3: Example of swaging allowing the fixed parts to rotate


（2）Characteristics of swaging technology
1.Advantages
- Assembly with strong fixing force can be achieved in a short processing time using jigs and automated equipment.
- As a method, it is highly reliable and easy to automate.
- The swaging process is greatly affected by the design quality at the design stage of the parts to be swaged.
2.Disadvantages
- Investment is required to install jigs and automated equipment.

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