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Rod drawing

Forming process in which the workpiece is drawn through a tapered shape that reduces and changes the cross-sectional area.

Beskrivning
Illustration of Rod drawing

The process

The work piece [1] in the form of a bar stock is cleaned and coated with a lubricant before processing. One end which is chamfered is inserted through the form [2] and by a pulling force, the entire rod is drawn through the mold and reduces and changes the rods cross sectional area [3]. Ordinarily a reduction of cross-sectional area of about 50% is achieved.

Advantages and disadvantages
In comparison with alternative methods
Simple components required
Cost-effective, fast process
Limitation of the cross-sectional area reduction