JM Hardware® Manufacturing Process of Screw
Manufacturing process
1- Cold Forging
This process is also known as Cold Heading. It is the basic operation in most bolt and screw plants to give their heads. The material is squeezed into a cavity of a mold, normally at room temperature, and the resultant part is a nail, a bolt or a screw with the head. The tooling is relatively simple and cheaper, moreover it offers other benefits such as better surface finish, improved dimensional stability and efficient use of material.
2- Machining
Basically, it is a removal process where jobs of desired size and shape are produced by gradually removing the excess material in the form of scrap with the help of sharp cutting edges or tools. Screw blanks go into a die, called a head-slotting machine, then the machinery fastens them into channels positioned around the perimeter of a wheel on the head-slotting machine. As the wheel revolves, a circular cutting device slots the screws.
xarella.huang@jm-fastener.comSince our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, and making a positive contribution to the society.