bt pull stud

BT Pull Stud for CNC Tool Holder Machine Accessories ,Pull studs are an important link between machine and tool.The requirements concerning accuracy,rigidity and reliability are very high.can reduce residual stress and improve durability and accuracy stability.Adopt surface coating technology to improve the anti-wear ability of the surface, better anti-rust and anti-corrosion effect, more stable accuracy, smoother surface and more beautiful appearance.

BT pull stud Product introduction:
Cnc Tools Holder Pull Stud Material: 20CrMnTi;
Bt30 Pull Stud Carburizing depth: > 0.8;
BT pull stud Head hardness: 54-57HRC;
Cnc Pull Stud The hardness of threads and other parts is low: 35+5HRC,( 59167533, 59167488, 59167430, 57086549,the core hardness of protective handle threads can withstand impact);

 pull stud BT40 Cryogenic treatment
1. The ultra-long cryogenic treatment at - 185 C transforms nearly all residual austenite into martensite.
2. Precipitated nano-carbide particles increase hardness and toughness.
3. Reducing residual stress;
4. The wear resistance is improved significantly.

Aging treatment
20-40 h super-long heat aging removes residual internal stress during grinding.