Bearing Bushing

Descrizione

The customer, a subcontractor to the German automotive industry, was looking for a suitable to chamfer the backward bore edge in a tube in a reliable and constant manner. The existing solution using a competitior's tool achieved no constant deburring result  and thus caused quite some manual reworking.

Application details

Application details

In every workpiece, there are four bores of which the bore edges at the back of the bores only need to be deburred / chamfered:

  • Bore-Ø d: 4 mm
  • Outer Tube-Ø: 30 mm
  • Inner Tube-Ø D: 26 mm
  • Chamfer diam. burr free: max. 0.5 mm
  • Material: Steel 1.0580 E 355
  • Production volume: 680'000 bores per year
  • Machine: Long turning lathe
  • Processing:  Radial processing from bar
  • Coolant pressure: 30 bar

Proposed solution

Proposed solution

HEULE proposed the follwing solution:

Tool: COFA 4M/4.0/Z1-OM
Blade: GH-C-M-0914-T nrs

Machining parameters:

  • Cutting speed: S = 1200 min-1 / v = 15 m/min
  • Feed: f = 0.2 mm/rev. (F = 240 mm/min)

Customer benefits

Customer benefits

The capabitlity of the deburring process has been proven and the manual reworking has become no longer necessary. The cycle time could be improved. This resultet in productivity gains of at least 20 %.

Customer satisfaction

Customer satisfaction

Long term member of the staff possessing a large amount of knowhow are as much excited about the results with the new tool as the head of production who can rely on a reliable solution now.