Cutting work for bronze or brass bars

Use of the combined CNC machine reduces the number of processes and allows complicated cutting work

A single process using the combined CNC machine turns a workpiece relatively large in diameter into a processed or finished product, which advances the delivery date and reduces costs.

Cutting work for bronze or brass bars
Material
Brass and Bronze.
Lead free Brass and Bronze.
Material size
Continuous cutting from φ 44 mm x L 3000 mm
Finished product size
φ43.5 mm, 125 mm in overall length
Details of processed product
  • The pierced bore in the workpiece 125 mm in overall length has an O-ring groove and screw processing.
  • It has a slit in addition to 1 cross hole.
Equipment features
  • The Y-axis is equipped in addition to the C-axis.
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Use of the NC lathe and machining center

The use of various equipment and the machining center improves productivity while maintaining processing accuracy.

This allows a smooth transition from trial production through commercialization to mass production.

Use of the NC lathe and machining center
Material
Brass and Bronze
Lead free Brass and Bronze
Material size
Continuous cutting from φ32 mm x L 3000 mm
Finished product size
φ31 mm, 40 mm in overall length
Details of processed product
The lateral hole is a complicated oval in shape.
2 holes on the edge face are eccentric:
  • one is for a bottom attached M3 screw
  • the other is the pierced step hole
Equipment features
  • Equipped with a Y-axis in addition to the C-axis.
  • The bar type can process a product as large as φ51 mm.
  • The chucker type can process a product up to φ250 mm.
Products can be fully processed within only a single process using the combined CNC lathe with 2 spindles and 2 saddles (bar type) equipped with the Y-axis.
This example chooses process division as it achieves more efficient processing in this particular case.
Processing
(up to approx. 50000 units can be produced monthly)
Primary process Secondary process
Processing with NC lathe Machining center
Details of processing Spots processed
Step cylinder 2 holes including the lateral hole on the side and the eccentric hole on the edge face
  A revolving chuck is used for the machining center to finish the process in a single chucking