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Machine Tool Parts Induction Hardening and Tempering Technical Conditions - Hengjin Induction Technology
The following technical conditions apply to metal cutting machine parts parts of the induction hardening, tempering technology requirements.

Appearance Quality
Parts of the surface should be clean, not allowed to crack, burns, corrosion and bumps and other defects.
Inspection appearance with the naked eye or low magnification microscope observation, if necessary, can be used to fill the oil or sandblasting method to test the crack.

Surface Hardness
The surface hardness of the part shall comply with the requirements of the drawings and the documentation.

Effective Hardened Layer Depth

Parts of the effective hardening layer depth should be consistent with the provisions of the drawings and process documents, effective hardening layer depth deviation in Table 1.

Table 1 (Unit: mm)

Nominal Depth

Depth Deviation

Nominal Depth

Depth Deviation

0.6

+0.6

0

2.0

+1.6

0

0.8

+0.8

0

2.5

+1.8

0

1.0

+1.0

0

3.0

+2.0

0

1.3

+1.1

0

4.0

+2.5

0

1.6

+1.3

0

5.0

+3.0

0


Effective hardening layer depth consistency should not exceed the requirements of Table 2, but the shape of complex and large parts allow a large range of fluctuations.

Table 2 (Unit:mm)

Effective Hardened Layer Depth

Depth Consistency

Single Part

Same Batch of Parts

≤1.5

0.2

0.4

>1.5-2.5

0.4

0.6

>2.5-3.5

0.6

0.8

>3.5-5.0

0.8

1.0

>5.0

1.0

1.5


Hardened area should be consistent with the provisions of the pattern and process documents, hardened area size deviation is generally: Intermediate Frequency ± 5 mm; Super Audio and High Frequency ± 4 mm.


For the machine tool parts of the induction hardening, Hengjin Induction developed induction hardening equipment for machine tool shaft, disk type, small parts, guide rails and chuck induction heating and quenching. Click to understand the induction hardening machine in the machine parts induction hardening solutions.


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