Engine block

Release time:

2022-04-18

This test knife is an improved test knife.

Customer Purpose:

1. Improve the problems of insufficient finish and burrs of existing products.

2, improve production efficiency.

3, cost savings.

Test results;

1, product finish perfect marking, chamfer burr problem solved.

2, compared with the existing efficiency of about 25%.

3, production costs are basically flat.

 

Cylinder hole machining

Client: an automobile company limited by shares

Workpiece: PUMA2.2/2.4 cylinder

Material: GG25

Processing equipment: Starragheckert HEC500

 

 
 
Processing procedure: OP130B
Processing content:
1. Semi-fine boring cylinder hole
2. Cylinder hole orifice chamfer
3. Fine boring cylinder hole
 
 
Cylinder bore semi-finishing
Tool: semi-fine boring cylinder hole step boring tool
Cutting parameters:
Φ89.4 Z = 6 (SCGW 09T308 BN081)
VC=850m/min n=3000 U/min
Fz=0.16 F=2880 mm/min
 
 
Cylinder bore finishing
Tool: fine boring cylinder hole fine boring tool (using internal cooling open mode)
Cutting parameters:
Φ 89.86±0.02 Z = 3 (SCGW 09T308 E BN081)
VC=850m/min n=3000 U/min
Fz=0.1 F=900 mm/min
 

 

Crankshaft hole machining

 
Processing: OP140B

Processing content:

1. Semi-finish boring crankshaft hole
2. Fine boring crankshaft hole
3. Precision turning thrust surface
 

Semi-finishing crankshaft hole

Cutter: Φ69-0.1/ Φ74-0.1/45 ° chamfer
compound line boring tool for semi-fine boring crankshaft hole
The semi-fine boring crankshaft hole and the chamfering at both ends of the crankshaft hole are finished at one time.
Z = 1(SCGW 09T304 LC610T)
 
Cutting parameters:
VC=100m/min n=460 U/min
Fz=0.15 F= 69mm/min
 

Thrust surface finishing of crankshaft hole

Φ104.2 Precision turning thrust surface contact type moving tool
The semi-precision and precision turning thrust surface is processed at one time.
Z = 1(CPGW 09T304 LC610T)
 
Cutting parameters:
VC=120m/min n=280 U/min

Fz=0.2 F= 56mm/min

 

Crankshaft hole finishing

Φ 69.46±0.015 fine boring crankshaft hole line boring tool Z = 1(SCGW 09T304 LC610T)

Compared with the traditional fine boring unit, the KIEINIGER semi-circular fine boring cutter holder can bring better cross-sectional strength to the boring bar, thus enhancing the rigidity of the boring bar.

Cutting parameters:
 
VC=125m/min
n=570 U/min
Fz=0.15
F=86 mm/min

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