Processing Difficult-to-cut materials applying water jet technology

Technical Classification:
[ Processing ]
[ Equipment / Facilities ]
[ Complex shape processing ] [ Difficult-to-cut materials (regardless of materials and shapes) ] [ Heat effects ] [ Water jet ]

Point of the Proposed Technology

・Using water jet, instead of conventional machine processing and laser processing, can ensure contactless and high density and can help minimizing deformation and strain of the workpiece.


・Prolongs tool life
・Improves precision of processed surface

Conventional Technology

Example of application to CFRP

 Laser cutting:
 ・There are resin parts and fiber parts in CFRP. Using laser in cutting CFRP caused dissolution only in the resin parts, which made cutting difficult.

 Cutting with metal tool:
 ・ In processing composite materials such as CFRP, it is difficult to process fibers, leading to shorter tool life. In addition, when worn-out tool is used for processing, cutting face of the work piece becomes deteriorated.

New Technology

Example of application to CFRP

 Water jet:
 ・ Water jet does not cause resin dissolution by the heat and it can make stable surface.
 ・ As per contactless and high density processing, minimum deformation and strain on the workpiece is enabled. Owing to cutting with an aqueous medium, dust scattering can be prevented.

Technology Deployment and Cooperation

Development Stage
Commercialization Completed (already delivered: yes)
Intellectual Property Right
Joint Researchers (their role)
Example of Application
・ Cutting and drilling for CFRP and molding parts of plastic.
Technical Problems
・ A proposal is needed for the processing method to reduce the amount of abrasive materials to be used.
・ Improvement aimed at processing with higher pressure of the jet.
Collaborator needed to Improve
・Manufacturers of high-strength metal, ceramics, and resins
Technical WEB page


Personnel / Department
Plant Equipment Division / Yoshitaka Tsuji
AI Takadake Bldg., 4-13 Higashisakura 1-chome, Higashi-ku, Nagoya-shi, Aichi, 461-0005 Japan
Inquiry Form

Outline of Company and Organization

2410 Hongo, Uozu-shi, Toyama, 937-8511 Japan
Capital / No. of Employees
2,324,670,000 yen / 1630 employees(Whole group)
Product Line
Ultra-high pressure water cutting device, wet/dry atomizing unit, drilling unit, etc.
Major Customers
Overseas Base(s)
USA, Mexico, France, Germany, China, Thailand, Singapore, Indonesia, etc.
Company/Organization WEB page

Update date: 2020/1/30

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