AWS - Chapter 9 - Weldment Tooling and Positioning
| Organization: | AWS |
| Publication Date: | 1 January 2001 |
| Page Count: | 24 |
scope:
One requirement common to all forms of welding is the need to position and hold workpieces accurately. Welding fixtures are typically the most common devices used to align and retain parts for welding. Nearly all welding fixtures are designed and built to suit the specific requirements of a single assembly. For this reason, most welding fixtures are quite expensive and often only justified when fabricating many units. When a limited number of fabricated units are needed for a very small batch or prototype work, other methods of positioning and holding workpieces are usually employed. For example, they may be positioned and held manually or fixtured with any arrangement of C-clamps, bar clamps, magnets, or framing squares on cast iron platens. Temporary fixturing may be used, time and economics permitting. Regardless of the quantity involved, each weldment must be properly fixtured to ensure that it is constructed correctly. This chapter is intended to serve as a guide with respect to the selection of appropriate tooling and positioning devices, providing suggestions to facilitate improved fixturing applications. The challenge involves the selection of the method of fixturing best suited for the application in terms of cost and fitness for purpose. These criteria vary widely from application to application as they relate to the various fixturing and positioning selections.
abstract:
Weldment Tooling and Positioning
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