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Conventional molds can only process linear flow paths, making it difficult to arrange the flow paths evenly on the molding surface. By using Yamatec's diffusion bonding technology, it has become possible to process molds in a sliced plate form, allowing for the design of curved flow paths that can be evenly arranged on the molding surface by stacking the processed components from each plate and diffusion bonding them together. The creation of molds with internal cooling channels, which was difficult with traditional mold manufacturing methods like "cutting" or "casting," can now be achieved using diffusion bonding! It is also possible to manufacture "sprue bushes" that realize "high-cycle molding" with diffusion bonding technology! **Features** - Rapid cooling without unevenness in the product - Significant reduction in cooling time - Improved quality in product appearance, precision, strength, etc. - Increased production efficiency and reduced production costs *For more details, please refer to the PDF document or feel free to contact us.*

• Contract manufacturing
• Mold Design
• Other molds

Layered diffusion bonding is a method of joining layered materials by applying pressure and heat in a vacuum furnace. Due to the small deformation on the order of micrometers, it is suitable for machining parts with fine flow paths and complex shapes. ■ Application examples for fuel cell separators - Capable of accommodating complex flow path patterns that cannot be achieved through cutting processes - Stable quality due to the simultaneous bonding of multiple products - Complex part shapes can be created through layering - Strong against changes and deformation of parts as no adhesives are used - Simplification of the manufacturing line and reduction of time - Achieves flow paths without gaps at the bonding surfaces, resulting in no losses ■ Application examples for filters used in food manufacturing - Material: SUS316 - Dimensions: φ25×t1.5 - Layer composition: 50μm×30 layers - Mesh dimensions: φ75μm (inner) to φ100μm (outer) taper * For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing
• Mold Design
• Other molds

Yamatech's diffusion bonding (thermal pressing) technology can react and bond a variety of materials, including similar metals and dissimilar metals, at the atomic level using heat. The compatible materials include a wide range, starting with "stainless steel (SUS)", as well as "nickel-based (Ni)", "copper-based (Cu)", "aluminum (Al)", "titanium (Ti)", and many others. Additionally, there are many achievements in bonding dissimilar metals, but there are certain conditions that apply, so please feel free to contact us. This technology is suitable for applications such as heat sinks. ■ Dissimilar metals that can be bonded - A5000 series + SUS304, C1020 - A6000 series + SUS304, C1020 - SKD61 + C1020, beryllium copper and others * For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

We would like to introduce the "corresponding sizes" in our diffusion bonding. Max 1000mm × 1000mm × 500mm (h), Minimum record φ0.9mm, □2mm cutout (line width 0.1mm), etc. Yamatec has introduced a 4-axis hot press to accommodate large sizes, enabling us to handle sizes that are difficult for other companies. Additionally, we are equipped with various special jigs for bonding processes involving extremely small and thin sizes, allowing for stable processing. 【Features】 ■ Introduction of a 4-axis hot press ■ Capable of processing one of the largest work sizes in the industry, Max 1000mm × 1000mm ■ Able to handle sizes that are difficult for other companies ■ Equipped with various special jigs of different shapes and sizes ■ Stable processing is possible *For more details, please refer to the PDF materials or feel free to contact us.

• Contract manufacturing
• Mold Design
• Other molds

A joining technology that does not require welding or adhesive, known as diffusion bonding (thermal pressing), is a method of joining various metals by heating and applying pressure without the use of adhesives (filler materials). It offers advantages such as enabling internal flow paths that are impossible with metal processing like cutting, and it produces almost no deformation, distortion, or burrs. "Could your concerns be resolved with diffusion bonding (thermal pressing)?" - I want to create complex jigs with no burrs at all. - Can you handle even small lot sizes? - I want to prototype and then mass-produce, but the delivery time is short. - I want to join aluminum alloys. - I have a rough design concept but want to develop it while verifying prototype data. - I want to place a consistent order for everything from material procurement to processing, joining, and inspection. - If the components of filler materials or insert metals have an impact, it can cause issues in the cleaning process. - I want to challenge further miniaturization of microchannel heat exchangers for hydrogen stations. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

We will introduce examples of production using diffusion bonding, including complex structure jigs, hollow heat sinks, and metal filtration filters. With diffusion bonding, it is possible to create molds with flow paths that could not be made using traditional mold manufacturing methods such as "cutting" or "casting." In particular, by incorporating precise flow paths within the mold that maximize cooling efficiency, production efficiency can be dramatically improved, resulting in a significant reduction in manufacturing costs. By stacking and bonding laminated materials, we can provide innovative molds that are more rational and have higher production efficiency without being constrained by manufacturing process limitations. 【Features】 ■ Creation of molds with cooling flow paths is possible using diffusion bonding ■ Significant reduction in manufacturing costs is achievable ■ Provision of more rational and highly efficient innovative molds ■ Capable of handling large sizes up to 1000 mm x 1000 mm *For more details, please refer to the PDF document or feel free to contact us.

• Mold Design
• Other molds
• Contract manufacturing

At Yamatec, we have achieved numerous results and provide stable technology with materials other than SUS, which are said to be difficult by other companies. Starting with "stainless steel (SUS)", we also work with "nickel-based (Ni)", "copper-based (Cu)", "aluminum (Al)", and "titanium (Ti)". Additionally, we have many achievements in the joining of dissimilar metals, but there are certain conditions that apply, so please feel free to contact us. 【Metals that can be joined at Yamatec (partial list)】 ■ Stainless steel (SUS) ■ Nickel-based (Ni) ■ Copper-based (Cu) ■ Aluminum (Al) ■ Titanium (Ti) *For more details, please refer to the PDF materials or feel free to contact us.

• Contract manufacturing
• Mold Design
• Other molds

Due to the limitations of conventional molds, it was impossible to arrange flow paths evenly on the molding surface, as only linear flow paths could be processed. By utilizing Yamatec's diffusion bonding technology, it becomes possible to process the mold in a sliced plate form. By stacking the components processed from each plate and performing diffusion bonding, it has become possible to design curved flow paths that are arranged evenly on the molding surface. 【Features】 ■ Uniform rapid cooling without product inconsistencies ■ Significant reduction in cooling time ■ Improved quality in product appearance, precision, strength, etc. ■ Increased production efficiency and reduced production costs *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing
• Mold Design
• Other molds

Our company offers contract processing for 'Diffusion Bonding (Thermal Pressing)', which joins various metals at the atomic level using heat and pressure. This method is suitable for manufacturing products and fine parts that require high precision, as it joins materials without melting the base metal. Since no adhesives (such as solder) are used, there is no influence from adhesive components, and no gases are generated. Additionally, by stacking multiple metal plates, it is possible to achieve complex shapes and internal flow structures that are difficult to create with machining processes. 【Features】 ■ No gaps between the bonding surfaces ■ Minimal deformation, distortion, and warping ■ Strength comparable to the base metal ■ Compatible with various metals, including dissimilar metals ■ Equipped with one of the largest hot press machines in the country, capable of handling everything from prototypes to mass production ■ Supports high-cycle molds *For more details, please refer to the PDF document. If you would like a sample, please apply through the inquiry form.

• Contract manufacturing
• Processing Contract

This is an introduction to our "Diffusion Bonding (Thermal Pressing)." Diffusion bonding (thermal pressing) is a joining technology that heats and applies pressure to various metals without the use of adhesives (filler materials). By causing atomic-level diffusion (the "go and come back" phenomenon between the structures of the surfaces being joined), we apply metal joining as a production technology. It enables internal flow paths that are impossible with metal processing such as cutting, and has advantages such as minimal [deformation][distortion][burrs]. 【Features】 ■ Enables internal flow paths that are impossible with metal processing such as cutting ■ The joining surfaces have no gaps and do not generate gas ■ Minimal [deformation][distortion][burrs] *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This is an introduction to our products made through diffusion bonding. We have the "microchannel heat exchanger for hydrogen stations" with a pressure resistance of 100 MPa, and the "internal flow channel mold," which was jointly developed with another company and has achieved high-cycle production. In addition, we also offer "metal filtration filters" and "precision jigs." Please feel free to contact us if you have any inquiries. 【Manufactured Products】 ■ Internal flow channels ■ Metal filtration filters ■ Precision jigs ■ Fuel cell separators *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract

This document introduces the tensile strength experimental data conducted by Yamatech. The tensile material used is SUS304 with dimensions of 10mm in height, 15mm in width, and 100mm in length. The tensile strength (KN) of the base material specimen SUS304 at the fracture surface is 93.86, and the tensile strength (MPa) is 625.7, achieving over approximately 91% of the base material strength. Data from joining processing conducted by a major steel manufacturer is also included. We encourage you to read it. [Overview] ■SUS304 tensile material (dimensions 10mm in height, 15mm in width, 100mm in length) ■Base material specimen SUS304 fracture surface ・Tensile strength (KN): 93.86 (base material strength) ・Tensile strength (MPa): 625.7 (base material strength) *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts

Yamatec Co., Ltd.'s "Diffusion Bonding (Thermal Press Joining)" is a processing technology that utilizes the diffusion of atoms occurring between the bonding surfaces by closely adhering the base materials and applying pressure to the extent that plastic deformation occurs as little as possible under temperature conditions below the melting point of the base materials. Unlike welding, it joins without melting the base materials, making it suitable for the manufacturing of products that require high precision and small-sized components. Additionally, since it does not use adhesives, there are no issues such as gas generation or the need to clean excess parts. **Advantages of Diffusion Bonding** - Surface-to-surface bonding → No worries about peeling during post-processing (tapping, embossing, bending, etc.)! - Precision processing at the micron (μm) level is possible → Established technology for layering and bonding precision components created by photo-etching without misalignment or distortion! - Capable of accommodating various sizes and shapes, including miniaturization and precision → Enables bonding of up to 1000×1000mm! - Capable of manufacturing complex parts that could not be made before → Can create complex shapes and flow structures that are difficult to achieve with metal processing such as cutting! *For more details, please contact us or download the catalog (technical materials).*

• Processing Contract
• Plastic processing machines (cutting and rolling)

The "Diffusion Bonding Comprehensive Catalog" by Yamatech Co., Ltd. introduces the method of "diffusion bonding," which involves closely adhering base materials and applying pressure to a degree that minimizes plastic deformation at temperatures below the melting point of the base materials, utilizing the diffusion of atoms that occurs between the bonding surfaces. It also includes examples of applications of diffusion bonding, diffusion bonding using vacuum hot pressing, and illustrations showing how the bonding interface integrates over the course of diffusion bonding. 【Benefits of Diffusion Bonding】 ○ Bonding of surfaces ○ Precision machining possible at the micron (μm) level ○ Capable of handling products from small-sized to large-sized ○ Enables the manufacturing of complex structural parts that were previously impossible to create For more details, please contact us or download the catalog.

• Processing Contract