# US 12,179,288 B2 · Laser processing system and laser processing method based on direction of reinforced fiber > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,179,288 B2 - Document ID: US12179288B2 - Status: Granted - Kind: B2 - Application number: 17/437,466 - Filed: 2019-03-27 - Published: 2022-06-16 - Granted: 2024-12-31 - Earliest claimed: 2019-03-27 - Assignees: Mitsubishi Heavy Industries, Ltd. - Applicants: Mitsubishi Heavy Industries, Ltd. - Inventors: Akiko Inoue; Saneyuki Goya - Web page: https://patentgrep.com/patent/US12179288B2 ## CPC - B23K 26/032: {using optical means} - B23K 26/38: by boring or cutting - B23K 26/0626: {Energy control of the laser beam (B23K26/0622 takes precedence)} - B23K 26/0652: {comprising prisms} - B23K 26/082: Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head - B23K 26/0884: {in at least three axial directions, e.g. manipulators, robots} - B23K 26/402: involving non-metallic material, e.g. isolators - B29C 59/16: by wave energy or particle radiation {, e.g. infrared heating (B29C59/007 takes precedence)} - B29C 70/12: using fibres of short length, e.g. in the form of a mat {(non-woven fabrics per se D04H1/00)} - B23K 2103/172: {wherein at least one of the layers is non-metallic} - B23K 2103/38: {Fabrics; Fibrous materials} - B23K 2103/42: {Plastics other than composite materials} - 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 - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract A laser processing system and a laser processing method that reduce irregularities on a cutting surface caused by a variation in a heat affected zone or a difference in the heat affected zone due to processing by a laser beam. The laser processing system is provided with: a laser processing device that scans a composite material containing reinforced fibers and a resin with a laser beam to process the composite material; and a control device that controls the laser processing device. The control device calculates a scanning angle formed by a fiber direction that is a direction of the reinforced fibers and a scanning direction that is a direction in which the laser beam is caused to scan, calculates a scanning condition of the laser beam on the basis of the calculated scanning angle, and controls scanning of the laser beam on the basis of the calculated scanning condition. ## Claims ### Claim 1 A laser processing system comprising: a laser processing device that scans a composite material containing a reinforced fiber and a resin with a laser beam to process the composite material; and a control device that controls the laser processing device, wherein the control device calculates a scanning angle that is an angle formed by a fiber direction, which is a direction of the reinforced fiber, and a scanning direction, which is a direction in which scanning is performed with the laser beam, calculates a scanning condition of the laser beam based on the calculated scanning angle, and controls scanning with the laser beam based on the calculated scanning condition. ### Claim 2 (depends on 1) The laser processing system according to claim 1, wherein the control device calculates the scanning condition for each region of the composite material, in which the scanning angle is constant, and controls scanning with the laser beam. ### Claim 3 (depends on 2) The laser processing system according to claim 2, wherein the region of the composite material, in which the scanning angle is constant, depends on a layer of the composite material, in which the fiber direction is constant. ### Claim 4 (depends on 1) The laser processing system according to claim 1, wherein the control device calculates a continuous change in the scanning condition in accordance with a continuous change in the scanning angle and continuously controls scanning with the laser beam. ### Claim 5 (depends on 4) The laser processing system according to claim 4, wherein the continuous change in the scanning angle depends on scanning with the laser beam having a curved shape continuously changing the scanning direction. ### Claim 6 (depends on 1) The laser processing system according to claim 1, wherein the control device calculates a scanning speed that is a speed, at which scanning is performed with the laser beam, as the scanning condition, and controls the scanning speed of the laser beam. ### Claim 7 (depends on 1) The laser processing system according to claim 1, wherein the control device calculates power of the laser beam during scanning as the scanning condition, and controls the power of the laser beam during scanning. ### Claim 8 (depends on 1) The laser processing system according to claim 1, wherein the control device calculates a combination of a scanning speed that is a speed, at which scanning is performed with the laser beam, and power of the laser beam during scanning as the scanning condition, and simultaneously controls the scanning speed of the laser beam and the power of the laser beam during scanning. ### Claim 9 A laser processing method comprising: a scanning angle calculation step of calculating a scanning angle formed by a fiber direction, which is a direction of a reinforced fiber contained in a composite material, and a scanning direction, in which the composite material is scanned with a laser beam; a scanning condition calculation step of calculating a scanning condition of the laser beam based on the scanning angle calculated in the scanning angle calculation step; and a laser processing step of processing the composite material by controlling scanning with the laser beam based on the scanning condition calculated in the scanning condition calculation step.