Metal Technology Co., Ltd. specializes in HIP, heat treatment, sintering, brazing, etc.


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Home:Metal Technology Co., Ltd. Metal Processing Technology＞Bonding

-Bonding-

Our bonding techniques include: brazing, diffusion bonding and welding.

Materials and Shapes	Bonding Method - Brazing,Diffusion bonding,Welding -
Size	Equipment
Benefits

Materials and Shapes

Materials　- various materials including metal-based and inorganic materials -

Ferrous alloys - carbon steels, stainless steels and heat resistant alloys
Non-ferrous alloys - copper, aluminum and titanium
Oxidizing ceramics - alumina
Non-oxidizing ceramics - silicon nitrides

Graphite, various composites, and multifunctional materials

Shapes

For bonding parts for large surface areas, three dimensional shapes, complex shapes, and precision parts
Surface bondings, pipe joints, channel forming, three dimensional parts, precision parts, sealings, linings, etc.
Examples: Various heat exchangers, parts with cooling structures, duplex tubes, honeycomb structured parts, heating plates, cooling plates, filters, etc.

Heat exchanger plate
(diffusion bonding of Ni alloy)

※ Click here for enlarged view

Bonding methods　-Brazing, Diffusion bonding, Welding-

Brazing

Brazing is a bonding methods which bonds various metals, ceramic materials, by melting the brazing filler materiall to create the bond. This filler has a lower melting point than the materials bonded. We do brazing in either a vacuum, hydrogen, or argon gas atmosphere. The bonding parts include precision part, multilayer structures and complex shaped parts.

■ Combinations of Materials

There is wide variety of materials which can be bonded through brazing. These include various metal to metal combinations as well as metal to ceramic combinations.

Cooling water plate
High strength brazing of A6061 with in-house developed Al sheet type brazing filler material

※ Click here for enlarged view

Diffusion bonding

Diffusion bonding is one of bonding methods by diffusing atoms each other between bonding parts by heating and pressurizing without melting base metals. The parts having multilayer and hollow structure can be produced with HIP or hot press equipment. High quality bonding for different materials can be achieved even for combinations that are difficult to bond such as: stainless steel and aluminum alloys or copper and titanium alloys, etc.

■ Combinations of Materials

There is wide variety of materials which can be bonded through brazing. These include various metal to metal combinations as well as metal to ceramic combinations.
Combinations include those that are difficult to bond by brazing or welding

Possible material combinations for bonding PDF(19KB)

Titanium alloy hollow structure part bonded by diffusion bonding

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Welding

We can provide electron beam welding and TIG welding.

■ Combinations of Materials

Stainless steel, aluminum, titanium alloy, tantalum, inconel, hastelloy, etc

Heat exchanger for power generation industry

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Size

Benefits

Please refer to our equipment specifications information for maximum parts.

Equipment
　-HIP, Vacuum hot press, Vaccuum furnace, Electron beam welding-

HIP Equipment list PDF(26KB)

Application	Diffusion bonding by applying isostatic pressure
Purpose	Round or multiple surface bonding in one process Bonding for large surface areas
Benefits	Largest HIP unit in Japan, suitable for mass production

“Giga-HIP”unit
D2,050×H4,200mm

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Vacuum hot press Equipment list PDF(15KB)

Application	Brazing or diffusion bonding with axial pressure
Purpose	Bonding for large surface areas 　(such as for porous materials or steel)
Benefits	We can respond to extensive bonding parameters using our multi-axis pressing equipment. Our equipment allows us to apply up to 500 tons of pressure which is also suitable for mass production.

Single axis 500 ton hot press equipment ( Himeji factory)
L1,200×W2,200×H2,000 mm

※ Click here for enlarged view

Vacuum furnace Large size vacuum furnace list PDF(26KB)

Application	Brazing or diffusion bonding under vacuum conditions
Purpose	Brazing without flux Diffusion bonding using fixtures
Benefits	Bonding highly reactive metals under high vacuum conditions Brazing for large parts

Vacuum furnace（Kanagawa factory）
L1,200×W2,000×H900 mm

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Electron beam welding

Application	Aluminum alloys, copper alloys,stainless steel, ferrous alloys, etc.
Purpose	For bonding when it is necessary to avoid heating the part so as not to reduce the material strength
Benefits	Beam output : 150KV～MAX6KW Operational range : X1,000mm×Y600mm (D1,000mm for circle)

Electron beam welding equipment
L1000×W600×H500 mm

※ Click here for enlarged view

Benefits

Integrated manufacturing	We can provide an integrated manufacturing plan from the design stage. This includes: material selection, bonding method, joint design, part manufacturing, and quality assurance based on the customer’s demands and extensive technical data.
Equipment	Vacuum furnaces : Max size 2,000 mm square Vacuum hot presses : Max size 1,200 x 2,200 mm Suitable for bonding large surface area and large size parts Pressure is applied in a uniform manner even for large parts
High quality	We have established a quality assurance system after bonding including helium leak check, ultrasonic testing for bonding conditions, metal structure, strength testing, etc.
Technical strength	We can simulate the bonding process to predict changes in shape and structure throughout the process. We then apply this data to the actual bonding process. We can provide stress analysis, thermal conductivity simulation, analysis for bonded surfaces, and strength of bonded parts from room temperature to higher temperatures.
Experience/ Knowhow	We have a database containing data from thousands of various bonding jobs due to our extensive experience in aerospace, aircraft, semiconductor, LCD, electronic devices, precision devices, and the automobile industry where high quality is demanded for bonding.

We will satisfy your requests through our sophisticated technology.

Our quality control system supports our advanced technology.

Quality Control System

Through our special metal proceses, we will meet your requests.

We supply integrated manufacturing from the designing stage to final part manufacture and provide advanced metal processing technology in a variety of business fields.

Metal Technology Co., Ltd. specializes in HIP, heat treatment, sintering, brazing, etc.

-Bonding-

Materials and Shapes

Materials - various materials including metal-based and inorganic materials -

Shapes

Bonding methods -Brazing, Diffusion bonding, Welding-

Brazing

Diffusion bonding

Welding

Size

Benefits

Equipment -HIP, Vacuum hot press, Vaccuum furnace, Electron beam welding-

HIP Equipment list PDF(26KB)

Vacuum hot press Equipment list PDF(15KB)

Vacuum furnace Large size vacuum furnace list PDF(26KB)

Electron beam welding

Benefits

We will satisfy your requests through our sophisticated technology.

Materials　- various materials including metal-based and inorganic materials -

Bonding methods　-Brazing, Diffusion bonding, Welding-

Equipment
　-HIP, Vacuum hot press, Vaccuum furnace, Electron beam welding-