Production Process
What is Hot Forging？
Hot forging entails the heating of a workpiece to about 75% of its melting temperature. This allows for the flow stress and energy required to form the metal to lower, effectively increasing the rate of production (or strain rate). Hot forging aids in making the metal easier to shape as well as less likely to fracture.
While other materials need to be strengthened through the forging process itself, materials such as most of the titanium and aluminum alloys, can be hot forged and then then hardened.
Average temperatures for hot forging includes:
Aluminum (Al) Alloys - 360° (680°F) to 520°C (968°F)
Copper (Cu) Alloys - 700°C (1 292°F) - 800°C (1 472°F)
Steel – up to 1 150°C (2 102°F)
What is Cold Heading？
Cold heading manufacturing is a multi-step process used to form metal parts at room temperature. Unlike other metal fabrication processes, hammers and dies are used at a high speed to form the metal without heating the material.
A large coil of wire is fed into a blank and pulled through a drawing machine. The drawing machine compresses the material to the desired diameter. It then passes into the cold heading machine.
While using a screw machine may eliminate the need for dies, cold forming requires dies to set the head shapes, which increases the lead time and initial cost.
However, cold heading at JM Hardware® includes many benefits:
What is Machining？
Turning is a machining process in which a cutting tool, typically a non-rotary tool bit, describes a helix toolpath by moving more or less linearly while the workpiece rotates.
The turning processes are typically carried out on a lathe, which is considered to be the oldest of the machine tools and can be of various types, such as straight turning, taper turning, profiling, or external grooving.
With this turning process, different material shapes such as straight, conical, curved, or grooved workpieces can be produced. When turning, simple single-point cutting is generally used. Each group of workpiece materials has an optimal set of tool angles that have been developed over the years.
The Advantages of the turning at JM Hardware®
All materials are compatible
Very good tolerance
No high skilled operator required
The material removal rate is flexible
What is Stamping？
Metal stamping is a manufacturing process used to convert flat metal sheets into specific shapes. It is a complex process that can include a number of metal forming techniques — blanking, punching, bending and piercing,
Types of Metal Stamping at JM Hardware®
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.