Wire drawing

From GAWDAwiki

Wire drawing is a metalworking process in which a wire rod is pulled through one or more dies, reducing its diameter and increasing its length.^[1]

Equipment

• Pointers are used to make a pointed end on a piece of wire, making it easier to thread the wire into a die.^[2]
• Pull-in dogs grip the wire as it moves through the die.
• Single-block machines pass wire through a die and collect it on a standard block.
• Multiple-block machines pass wire through a die and collect it on a slightly tapered block. The wire then moves up onto collector pins and exits the upper section, reducing back tension.
• Inverted drawing machines and gravity blocks are generally used with coarse wire sizes or when drawing wire that requires superior surface quality.^[3]

References

1. http://class.et.byu.edu/mfg130/processes/descriptions/deformation/wiredrawing.htm
2. http://www.wireworld.com/seminar/wiredrawing/
3. http://process-equipment.globalspec.com/LearnMore/Manufacturing_Process_Equipment/Cutting_Forming_Tools/Wire_Drawing_Dies