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Gonda Metal Industry Co., Ltd. is not only making efforts to the improvement
of the present products but also to the development of a new product for
the next generation. We are dealing with the research and development of
the next product by the theoretical proof with co-research with universities
and laboratories.
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Introduction of the research result |
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●Results of "Development of Copper Deformed Bar
by Conform Extruder"
Gonda Metal has succeeded in developing a continuous extrusion molding
process for copper deformed bars, thereby making them commercialized. Extrusion
by Conform has, in theory, no limitation to extrusion length and can produce
shapes that are very close to those of final products. Even deformed shapes
as shown in the photo can be extruded in one operation, and fine microstructure
and high workability can also be obtained. |
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▲Non-regular shaped products |
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●Resulｔ of the development of mass-production for magnesium alloy sheet
by the hi-speed twin-roll casting system and hot rolling
Magnesium and its alloy are the lightest metal in all metals of practical
use and have various useful properties. We have begun to study a new twin-roll
casting system which can cast the magnesium alloy sheet directly cooperating
with professors of universities since 2002. As the result, we have successfully
developed a new hi-speed twin-roll casting system named "Gonda Twin-roll
Casting System" (GTC) and obtained the patent. Various magnesium alloy
sheets, which have generally been recognized it is difficult to manufacture
magnesium alloy sheets excepting AZ31, can be manufactured by GTC. GTC
can manufacture various magnesium alloys such as AZ31, AZ61, AZ91, AM50,
AM60 and so on. We are going to study other magnesium alloys except them
in the future. In 2008, the mass-production for AZ61 which is excellent
in press workability, strength and surface treatment has been started. |
▲Coil of magnesium grinding sheet |
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●Explation on Gonda Twin-roll Casting System（GTC)
Gonda Metal has developed a new twin-roll casting system(GTC: Gonda Twin-roll Casting System) to manufacture the magnesium alloy sheet. Not only AZ31 sheet, but magnesium alloy sheets made from AZ61, AZ91, AM50, AM60 and so on can be manufactured of which it has been recognized as difficult to manufacture, by combinig this system GTC and rolling process.
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▲Magnesium alloy sheet AZ61 |
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●Properties of our system
 The casting strip with small grain size and equiaxed crystal can be manufactured
by rapid cooling. Terefore various magnesium alloy sheets of AZ61, AZ91,
AM50, AM60 and others can be rolled not only that of AZ31.
This system can obtain high productivity because the productive balance
of casting and rolling process can be easily taken by its high speed casting.
The casting strip made by this method is usable for a die forging material. |
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●The patent of this development
"METHOD AND APPARATUS PRODUCING THIN MAGNESIUM BASED ALLOY PLATE"
December 19, 2003:3503898(JAPAN)
May 9, 2007:1614490(EU), USA, Australia, Taiwan, Korea and Russia |
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●Application of various public subsides
Our research activities have been funded by various public subsidies.
1999:Kanagawa Prefecture Core Industry Promotion Project Subsidy
2002:Kanagawa Specific Industry Accumulation and Activation Project Subsidy
2003:Creative Technology R&D Subsidies of METI
2005:Kanagawa Prefecture Industial Accumulaton Incentive Program (INVEST KANAGAWA)
2005:Sagamihara Tomorrow Expansion Project for 50 years (STEP50) (Sagamihara
Industrial Accumulation Promotion and Facilities Maintenance Bounty)
2008:Regional Needs Conformity Project(Japan Science and Technology Agency) |
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◆Case example list
Development for Magnesium Alloy sheet
2008/10/24
Had a presentation at 1st Automotive Magnesium Technical Seminar 2008 of
the Japan Magnesium Association
Theme:Practicability on Magnesium alloy sheet AZ61
Date: October 24, 2008 (Fri.) 14:00-17:00
Place: Kikai Shinko Building
Sponsorship: The Japan Magnesium Association
Presenter: President Gentaro Gonda
Development for Magnesium Alloy sheett
2008/7/22
Research result presentation at 27th the association of Magnesium Alloy Development and Processing, Kumamoto University
Theme: Manufacturing AZ61 sheet by twin-roll casting system
Date: July 22, 2008(Tue) 15:00-15:40
Place: Reception room in Kusunoki Kaikan, Kurokami north Campus, Kumamoto University
Sponsorship:The association of Magnesium Alloy Development and Processing, Kumamoto
University
Presenter: Yoshio Gonda, Executive Director, Manager of Manufacturing Department
Development for Magnesium Alloy sheet
2008/3/18
Research result presentation at 9th seminar for Magnesium forming
Theme:“Technology for Casting and Rolling developed by Gonda Metal”
Date: March 18, 2008 15:00-15:50
Place: EDO-TOKYO Museum
Sponsorship:Japan Magnesium Association
Lecturer: Dai Ohno, Magnesium Department
Development for Magnesium Alloy sheet
2007/9/9～12
Research result presentation at the annual conference in the 110 anniversary for establishment of the Japan Society of Mechanical Engineers
Theme : “Development for magnesium alloy sheets by twin-roll casting”
Date: September 9(Sun.) - 12(Wed.), 2007
Place: Senriyama campus of Kansai University
Sponsorship: The Japan Society of Mechanical Engineers
Lecturer: Dai Ohno, Magnesium Department
Development for Magnesium Alloy sheet
2006/6/9
Research result presentation at the 14th Magnesium Technology Research Meeting of The Japan Magnesium Association.
Theme: "Manufacturing magnesium alloy sheet by twin-roll casting"
Date: June 9 (Fri.), 2006
Place: Toranomon Pastoral (Magnolia on 5th Floor in New Building)
Sponsorship:The Japan Magnesium Association
Lecturer: Dai Ohno, Magnesium Department
Development for Magnesium Alloy sheett
2006/5/13～14
Research result presentation and display at the 110th Spring Convention of The Japan Institute of Light Metals
Theme: "Manufacturing magnesium alloy sheet by twin-roll casting"
Date: May 13 (Sat.) - 14 (Sun.), 2006
Place: Kitakyusyu International Conference Center
Sponsoring: The Japan Institute of Light Metals
Lecturer: Dai Ohno, Magnesium Department
2006/3/27
Succeeded in cup-shape forge processing of magnesium
Development for Magnesium Alloy sheet
2005/11/17～18
Research result presentation and display at Manufacturing Network Exchange
Fair in Tsubame Sanjyo 2005.
Theme: "Development of thin magnesium alloy rolled sheet"
Date: November 17 (Thu.) - 18 (Fri.), 2005
Place: Multipurpose main hall in Sanjyo and Tsubame area MESSEPIA
Sponsorship: MESSEPIA
Presenter: President Gentaro Gonda
Development for Magnesium Alloy sheet
2005/11/10～11
Exhibited magnesium alloy sheet at Kanagawa New Technology Exhibition (sponsored by Sony Corporation and Kanagawa prefectural government)
Theme: "Manufacturing magnesium alloy rolled sheet by twin-roll casting method"
Date: November 10 (Thu.) - 11 (Fri.), 2005
Place: Shinagawa Intercity Building C (Multipurpose hall on Sony Shinagawa TEC
5th Floor)
Sponsorship: Sony Corporation and Kanagawa prefectural government
Co-Sponsorship: Kanagawa Small and Medium Sized Enterprise Center
Support: The Association for Kanagawa Industrial Technology Research Institute
Development for Magnesium Alloy sheet
2005/10/18
Research result presentation and display at the SIC Business Fair 2005
Theme: "Development result and application of thin magnesium alloy rolled sheet"
Date: October 18 (Tue.), 2005
Place: Sagamihara Industry Creation Center (SIC) Sun Yell Sagamihara (Hashimoto
Station of JR Keio Line)
Sponsorship: Sagamihara Incubation Center. LTD., Municipal government of Sagamihara,
The Sagamihara Chamber of Commerce and Industry/Industry Promotion and
Development Foundation of Sagamihara
Presenter: President Gentaro Gonda
Development for Magnesium Alloy sheet
2005/3/3～4
Research result presentation and display at Regional New Industry Creation
Fair 2005
Theme: "Development of wide plate and bar of magnesium alloy with
high processability"
Date: March 3 (Thu.) - 4 (Fri.), 2005
Place: Tokyo International Forum (Exhibition Hall 2)
Number of visitors: 1,360 (according to organizer's announcement). About 100 of them visited our booth.
Sponsorship: Kanto Bureau of Economy, Trade and Industry of Ministry of Economy, Trade
and Industry
Lecturer: Yuki Nishiyama, Magnesium Department
Development for Magnesium Alloy sheet
2005/2/10
Exhibited at National Magnesium Symposium in Central Niigata Prefecture
Theme: "Development and manufacturing of magnesium alloy rolled sheet
material"
Date: February 9 (Wed.) and 10 (Thu.), 2005
Place: (Lecture) Sanjyo and Tsubame Area Research Core/ (Exhibition) Sanjyo and
Tsubame area MESSEPIA
Number of visitors: 2,840 (according to organizer's announcement). About 200 of them visited our booth.
Sponsorship: MESSEPIA
Development for Magnesium Alloy sheet
2004/4/16
Research result presentation at Magnesium Alloy Processing Technology Workshop of Japan Society of Mechanical Engineers
Theme: "Practical development of direct rolling method"
Date: April 16 (Fri.), 2004 (14:00-)
Place: The Japan Society of Mechanical Engineers Conference Room (Brick Hall)
Sponsorship: Magnesium Alloy Processing Technology Workshop of Japan Society of Mechanical Engineers
Presenter: Yoshio Gonda, Executive Director, Manager of Manufacturing Department
Development for Magnesium Alloy sheet
2004/2/13
Research result presentation of the fifth Magnesium Press Molding Seminar
Theme: "Manufacturing magnesium alloy rolling material"
Date: February 13 (Fri.), 2004 (13:00-13:40)
Place: EDO-TOKYO-MUSEUM Training Room
Sponsorship: The Japan Magnesium Association
Presenter: Yoshio Gonda, Executive Director, Manager of Manufacturing Department
2003
Application of subsidy for business invigorating corporate community designated by Kanagawa prefectural government in fiscal 2002
Theme: "Research and development on consistent process of twin-roll
continuous casting and warm-rolling of wide magnesium alloy sheet"
1999
Application of subsidy for business promoting core industry designated by Kanagawa prefectural government in fiscal 1999
Theme: "Development of copper deformed bar with conform extruder"
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Company Profile and History