Breakthroughs in Instrument Micro Screws Design: Friction and Lubrication

2026,03,30

Scratching manifests as marks on the surface of parts along the material flow direction. The root cause is excessive frictional resistance between the Instrument Micro Screws and the material, or poor lubrication. Instrument Micro Screws design needs to focus on three core areas:

DIN912 M1.6*3 SUS Washed Bright Hexagon Head Socket Cap Screws (Roll Flowed)

1. Ultra-smooth Surface Treatment

Utilizing diamond polishing technology to control the surface roughness of the die, punch, and pressure ring to below Ra0.05μm, reducing material adhesion.

Using cemented carbide or titanium-plated coatings (TiN/TiAlN) for the cavity construction improves surface hardness and wear resistance, forming a low-friction interface.

2. Intelligent Lubrication System

Introducing an annular lubrication groove at the die inlet, coupled with an automatic oil mist lubrication device, ensures continuous oil supply during material flow.

For high-temperature scenarios, adding cooling water channels controls the cavity temperature, preventing grease failure.

3. Precise Clearance Matching

Based on the material thickness and elongation coefficient of the Instrument Micro Screws, controlling the die-punch clearance to 1.05-1.1 times the material thickness (for low-carbon steel) avoids excessive compression that causes scratches.

Author:

Mr. yjfastener

E-mail:

hou@citool.com

Phone/WhatsApp:

+8615826187211