ステンレス鋼 | オーエスジー

Due to chip control and work hardening issues, high-speed tapping is not recommended.

(FAQID:345)

For ordinary SUS Tap , both spiral fluted tap and spiral pointed tap are for depths up to 1.5~2 times the thread diameter.

If it is longer than that, we recommend the specification for deep holes.

Reference:

For stainless steel, where chips tend to stretch and cutting heat tends to accumulate, managing the maximum diameter at actual size within the standard will prevent durability UP problems. Although there are varying degrees, stainless steel tends to shrink when Pilot hole is drilled with a carbide drill. In high-speed drills for stainless steel, which have a sharp

Austenitic such as SUS304, ferritic such as SUS405 having strong magnetism, martensitic such as SUS420 that can be heat-treated used in medical instruments such as scalpels, precipitation hardening systems such as SUS630 which has excellent strength and is used as heat-resistant steel, Furthermore, in recent years, there are five main types of stainless steel, including duplex stainless steel

Mechanism of work hardening
For example, a brand new futon is fluffy.
However, if you use it for a long time, the cotton will be compressed and become hard.
Imagine that a similar phenomenon occurs in the structure of metals.

The metallographic structure is also initially arranged with atoms in an orderly manner.
If the alignment is bent or rubbed, it will crumble and be

I would like to introduce a typical one.