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The case of Dressing Hob Cutter

Author:Cassie Time:2021-07-28 15:26:19

01. Hob cutter

Work piece

Hob cutter

Material

High speed steel with titanium aluminum nitride coating

Hardness

HRC64-68

Allowance

0.2-0.3mm

Roughness

Ra0.2μm

Accuracy

The straightness of single tooth top to tooth root is 0.005mm, the straightness of the whole hob is 0.01mm from left to right, and the teeth in the circular direction are equally divided into 0.1mm

Other

Grinding surface grain consistent, no burn vibration marks

 

02 Grinding wheel parameters

Grinding wheel

Grinding wheel for dressing Hob cutter

Specification

4C9 150Dx15Tx3.5Wx50H

Bond

Vitrified bond CBN wheels

 

03 Machine Parameters

Machine

LUREN-LHS-3040

Spindle speed

Spindle speed

Grinding allowance

0.2-0.3mm

Dressing

WA oil stone 220#

Dressing frequency

1-2 piece/times

Feed speed

600-1000mm/min

Dressing time

25-30 min

 

04 Grinding result

Item

MORE

Top brands in Japan

Note

Specification

4C9

150Dx15Tx3.5Wx50H

Vitrified bond wheels

4C9 150Dx15Tx3.5Wx50H

Resin bond wheels

 

Linear speed

54m/s

54m/s

same

Processing time

25min

25min

same

Dressing time

Manual

Manual

same

Dressing frequency

1-2 piece/dressing

1 piece/dressing

 

Dressing amount

Manual

Manual

same

Roughness Ra0.2

0.08-0.1μm

0.1-0.12μm

MORE with

better roughness

straightness

0.005mm

0.005mm

same

Life

100 hob cutter

70 hob cutter

MORE with longer life

 

 

Through the above cases, we can see that the service life of our grinding wheel increased by 43% compared with the foreign competing grinding wheels under the same processing quality; Production efficiency increased by 5%; the combined cost was reduced by 35%. Our grinding wheels have higher quality and longer service life, which can bring better comprehensive processing cost to customers.

 

 


TAG:   cutter grinding dressing hob
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