Electro-fusion joining technology for CFRP

Technical Classification:

[ Joining ]

Products:

Keyword:

[ corrosion resistance ] [ Fusion joining ] [ recyclability ] [ spread carbon fiber ] [ tensile shearing strength ]

Point of the Proposed Technology

・Compared to the conventional fusion joining using a metallic resistance heating element, this technology substantially increases the tensile shearing strength of fusion joined portion.
・By using carbon fiber for the resistance heating element, the joining strength, recyclability and corrosion resistance are increased.

Effect(s)

・Realizing a tensile shearing strength of 30 MPa or more
・Improving the corrosion resistance and recyclability

Conventional Technology

・Mechanical joining
　　The increase in weight due to stress concentration and metallic fastening is a problem.

・Adhesion joining
　　Chemical bonding with thermoplastic resin is extremely low.

New Technology

Technology Deployment and Cooperation

Development Stage	Prototyping / experimental Stage (to be completed in 2018/3; progress: 80%)
Intellectual Property Right	Yes
Joint Researchers (their role)	Graduate Schools of Osaka University (Assessment of mechanical properties of fused portion, and so on)
Example of Application	・Fusion joining using thermoplastic CFRP and GFRP and various resin members and pipe joints ・Joining or repair of members by high-cycle fusion joining of thermosetting CFRP and GFRP
Technical Problems	・Upsizing and stabilization of fusion joining, increase of reliability in fatigue strength, impact resistance, etc. ・The patent application for this technology has been filed. The technology can be provided.
Collaborator needed to Improve	・Companies having the techniques for homogeneous spreading of carbon fiber and impregnation molding of various thermoplastics. ・Device manufacturers which can develop stable and high-output power sources
Technical WEB page	http://www.kindai.ac.jp/sci/

Development Stage

Prototyping / experimental Stage (to be completed in 2018/3; progress: 80%)

Intellectual Property Right

Yes

Joint Researchers (their role)

Graduate Schools of Osaka University
(Assessment of mechanical properties of fused portion, and so on)

Example of Application

・Fusion joining using thermoplastic CFRP and GFRP and various resin members and pipe joints
・Joining or repair of members by high-cycle fusion joining of thermosetting CFRP and GFRP

Technical Problems

・Upsizing and stabilization of fusion joining, increase of reliability in fatigue strength, impact resistance, etc.
・The patent application for this technology has been filed. The technology can be provided.

Collaborator needed to Improve

・Companies having the techniques for homogeneous spreading of carbon fiber and impregnation molding of various thermoplastics.
・Device manufacturers which can develop stable and high-output power sources

Technical WEB page

http://www.kindai.ac.jp/sci/

Inquiries

Personnel / Department	Department of Mechanical Engineering, Faculty of Science and Engineering / Professor, Kazuaki Nishiyabu
Address	3-4-1 Kowakae, Higashiosaka-shi, Osaka, 577-8502 Japan
Contact	TEL: +81-6-4307-3473

Personnel / Department

Department of Mechanical Engineering, Faculty of Science and Engineering / Professor, Kazuaki Nishiyabu

Address

3-4-1 Kowakae, Higashiosaka-shi, Osaka, 577-8502 Japan

Contact

TEL: +81-6-4307-3473

Outline of Company and Organization

Location	3-4-1 Kowakae, Higashiosaka-shi, Osaka, 577-8502 Japan
Capital / No. of Employees	0 yen・
Product Line
Major Customers
Overseas Base(s)
Certification
Company/Organization WEB page	http://www.kindai.ac.jp/sci/

Location

3-4-1 Kowakae, Higashiosaka-shi, Osaka, 577-8502 Japan

Capital / No. of Employees

0 yen・

Product Line

Major Customers

Overseas Base(s)

Certification

Company/Organization WEB page

http://www.kindai.ac.jp/sci/

Update date: 2020/1/30

Kindai University, Department of Mechanical Engineering, Faculty of Science and Engineering