Absolutely, a 4 Die 4 Blow System in a multi-station cold forming machine is designed to shape metal wire into the desired form through a series of four dies and four corresponding blows (or strokes). This system provides manufacturers with the flexibility and precision needed to produce moderately complex shapes with high accuracy. Each die and blow sequence can be customized for specific tasks, making this machine particularly effective for producing medium-sized fasteners like those in the M10-M12 range.
Detailed Breakdown of the 4 Die 4 Blow Process
First Die & Blow: Cutting Off
Task: The process begins by cutting the wire to the required length. This step ensures that each piece of material is accurately sized before heading.
Outcome: A precisely measured blank ready for further processing.
Second Die & Blow: Heading
Task: The first forming operation typically involves creating the head of the fastener. Depending on the design, this could involve upsetting (enlarging one end of the blank) or forming the head shape.
Outcome: A partially formed fastener with a rough head shape.
Third Die & Blow: Extruding/Piercing
Task: In this stage, extrusion or piercing operations may be performed. Extrusion can be used to extend or reduce the diameter of the blank in certain areas, while piercing creates holes or other features.
Outcome: Enhanced shaping of the fastener, including any necessary extensions or reductions in diameter, and possibly the addition of holes or slots.
Fourth Die & Blow: Trimming/Forming
Task: The final stages often involve trimming excess material and performing any additional forming needed to achieve the final shape and dimensions of the fastener. This could include rolling threads or finishing the head.
Outcome: A finished fastener product that meets exact specifications for size, shape, and strength.
