How many kinds of thread manufacturing processes?
The thread processing method mainly has two major categories: cutting and rolling processing. Cutting generally refers to a method of processing a thread on a workpiece with a molded tool or abrasive. Rolling is to use a forming rolling mold (for example: Thread Rolling Dies) to generate plastic deformation to obtain a threaded process.
- Thread Cutting
Generally referring to a method for processing threads on a workpiece with a forming tool or abrasive, mainly turning, milling, tapping, sleeve, grinding, grinding and cyclone cutting. When turning, milling, and grinding threads, the workpiece rotates each turn, the drive train of the machine, the mill, mill or grinding wheel moves accurately and uniformly and uniformly and uniformly.When tapping or sleeve, the tool (tap or blade) is relatively rotationally movable with the workpiece, and guided the tool (or workpiece) as axial movement by the first threaded groove. Generally, more threaded cutting tools are taps.
- Thread Rolling
The workpiece is plastically deformable with a thread rolling dies to obtain a process for obtaining a thread. Threads are typically carried out on a thread rolling machine or a flat-die thread rolling machine or an automatic lathe that is attached automatically, suitable for large quantities of standard fasteners and other threaded coupling.The rolled threaded surface can improve strength and hardness due to cold work, high materials utilization, and productivity are multiplied by cutting, and is easy to achieve automation, and the rolling die is long time. However, the rolling thread requires the hardness of the workpiece material to exceed HRC30, and the blank material used to roll the workpiece of different materials is different. The need for blank size accuracy is high, and the accuracy and hardness of the thread rolling dies is also high. The rolling dies can be divided into Thread Rolling Dies ( Thread Rolling Cylindrical Dies ) and Thread Flat Dies and Thread Planetary Dies.
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