4140 PREHARD STEEL TURNED PINS FOR DEPLOYABLE SCISSOR STRUCRURE TOOL
March 12, 2022
Turned Pins, made by CNC turning parts machining. Adopts CNC lathe machine to cut extra steel materials from steel bar. The CNC turning process features turned part with smooth furface, precision tolearnce.
This is for a heavy equipment scissors. Whole tool consist of 76 pins of 7 different types.
The 4140 HD STEEL material is required. To meet local steel type. We choose 40CRMNMO (CHINA GB standard) to machine the Pins.
4140 HD steel is one kind prehard steel, which with good strength. This prehard material saves the step of hardening. If pins be hard after machining, which can lead to heat based distortions. CNC lathe machine working with the hardened steel easily.