Maho Aktiengesellschaft

Peter Grund

Werner Babel

Gunter Eberl

Uli Sutor

The invention concerns a process and a device for the manufacture of relatively deep cavities in massive workpieces through a laser beam, whereby the material is removed by the laser beam (7) in close guide paths. According to the invention, during each linear ablation process the laser beam (7) deviated vertically is rotated by a predetermined angle while the workpiece (12) is moved back and forth synchronously on a circular path (14) around the rotating axis (4) of the laser beam (7). Upon ablation of a material layer, these linear ablation processes are repeated until the predetermined depth of the cavity has been reached. According to the invention, pocket-like or chamber-like cavities (13) with vertical or undercut walls can be produced with considerable ablation performance in often inappropriate materials such as ceramics, titanium, etc.

Process and device for the manufacture of cavities in workpieces through

The invention concerns a process and a device for the manufacture of relatively deep cavities in massive workpieces through a laser beam, whereby the material is removed by the laser beam (7) in close guide paths. According to the invention, during each linear ablation process the laser beam (7) deviated vertically is rotated by a predetermined angle while the workpiece (12) is moved back and forth synchronously on a circular path (14) around the rotating axis (4) of the laser beam (7). Upon ablation of a material layer, these linear ablation processes are repeated until the predetermined depth of the cavity has been reached. According to the invention, pocket-like or chamber-like cavities (13) with vertical or undercut walls can be produced with considerable ablation performance in often inappropriae materials such as ceramics, titanium, etc.

A machine tool consisting of a stand for a spindle case which travels along the horizontal Z-axis and the vertical Y-axis, with at least one horizontal working spindle and a non-deformable bed with guides for workpiece bench traveling horizontally along the X-axis. To allow simultaneous milling and lathe work on several workpieces, the machine tool comprises a complete milling unit, and next to it on the machine bed, a complete lathe unit. To the side of the workpiece bench of the milling unit, an independent, rotation driven device is placed within the guides of the bed for clamping horizontally aligned workpieces, and next to it a turret head upon which turning tools are secured.

Machine tool

An apparatus for compensating for the thermal expansion of two machine parts which are relatively movable in longitudinal guideways. The apparatus comprises a rule, a support rod longitudinally disposed on the movable machine part for supporting the rule, and an electric scanning head mounted on the stationary machine part. The support rod is made of a material which exhibits negligible thermal expansion in the concerned temperature range. The forward end of the support rod is rigidly secured to the forward end of the movable machine part while the rear end thereof is movably guided on that machine part. The rear end of the rule is fixed to the rear end of the support rod. The scanning head is disposed on the stationary machine part in such a way that any thermal expansion of the stationary machine part cannot affect the location of the scanning head.

Growing community of inventors

Rieden, Germany

Peter Grund