# US 5,350,897 A · Hybrid laser-plasma arc cutting apparatus combined with a punch press

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- Number: US 5,350,897 A
- Document ID: US5350897A
- Status: Granted
- Kind: A
- Application number: 08/092,265
- Filed: 1993-07-15
- Granted: 1994-09-27
- Earliest claimed: 1993-07-15
- Assignees: Murata Machinery, Ltd.
- Inventors: Victor L. Chun
- Web page: https://patentgrep.com/patent/US5350897A

## CPC

- B23P 23/02: Machine tools for performing different machining operations (lathes, e.g. capstan lathes, B23B; combined horizontal boring and milling machines B23B39/02)
- B23K 26/0093: {combined with mechanical machining or metal-working covered by other subclasses than B23K}
- B21D 28/00: Shaping by press-cutting; Perforating
- B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q)
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F)

## Abstract

A sheet material hybrid cutting apparatus has a laser beam cutting head mounted side-by-side with a plasma arc cutting head on a shuttle carrier plate movably mounted to enable positioning of either cutting head a single cutting station. The cutting heads are mounted in a punch press with a punching station offset from the cutting station to provide punching of a sheet material workpiece moved across a table by a carriage as well as contouring by either of the laser beam or plasma arc cutting heads.

## Claims

### Claim 1

A hybrid cutting apparatus for cutting sheet material workpieces comprising:
a workpiece support table;
a cutting station located above said support table;
a carriage-gripper means engageable with a sheet material workpiece and adapted to controllably move said workpiece on said table so as to position a selected point on said workpiece at said cutting station;
a laser beam cutting head;
a laser beam source generating a high energy cutting laser beam;
beam transport means for directing said generated laser beam to said laser beam cutting head;
a plasma arc cutting head;
power supply means for providing electrical energy to said plasma arc cutting head for operation thereof;
a vertically disposed carrier plate positioned above said cutting station;
said laser beam and plasma arc cutting heads mounted side-by-side on said carrier plate;
support means supporting said carrier shuttle plate for horizontal reciprocal movement between first and second shifted positions bringing one or the other of said laser beam or plasma arc cutting heads respectively into alignment with said cutting station in said first and second shifted positions of said carrier shuttle plate;
a common discharge chute at said cutting station for receiving the cutting debris produced by either said laser beam cutting head or said plasma arc cutting head; and
actuator means for powering said movement of said shuttle carrier plate whereby either said laser beam or plasma arc cutting head may be selectively employed at said cutting station.

### Claim 2 (depends on 1)

The cutting apparatus according o claim 1 in combination with a punch press including a punching station offset with respect to said cutting station and punching tooling enabling punching operations to be conducted on said workpiece as well as laser beam or plasma arc cutting.

### Claim 3 (depends on 1)

The cutting apparatus according to claim 1 wherein said beam transport means includes a telescoping tube aligned to accommodate said side-to-side motion of said carrier shuttle plate.

### Claim 4 (depends on 1)

The cutting apparatus according to claim 1 wherein both said cutting heads are mounted to allow vertical retraction thereof when not in use.