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Shell ring connector

Drilling, forward and backward chamfering simultaneously: Cost reduction of more than USD 100,000 per year.
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Customer application

The shell ring connector of an 8-speed gearbox has 12 bores with Ø5.0 mm per workpiece. 

WorkpieceShell ring connector
BoreØ5.0 mm
Material thickness4.0 mm
MaterialADC 10
MachineMagnix tapping centre
Volume1 million workpieces per year
VEX_einzeln

Solution

HEULE recommended its combined drilling and chamfering tool VEX 5.0 (GH-QO-4000) with SNAP technology. The bore is first drilled, followed by the chamfering of the front and back bore edges.

ToolVEX
Drilling speed100 m/min 
Drilling working feed0.2 mm/rev
Chamfering speed72 m/min
Chamfer working feed0.15 mm/rev
Coolantexternal coolant

Customer benefit

This solution offers significant processing time savings by combining three process steps in a single pass. With the switch to VEX, the gearbox manufacturer eliminated two CNC machining centres and reduced its annual expenses by more than USD 100,000.