Introducing the manufacturing technology of precision fitting components consisting of 4 types and 16 parts!
This is a complex shaped stamping product that is used by fitting male and female parts together. To ensure that customers can assemble it smoothly and prevent leaks during use, an optimal clearance is required, achieving a face clearance of 0.16 mm during fitting. The outer part is made of stainless steel with significant springback, requiring contour accuracy in the 100-micron range for both male and female components, which is addressed using the unique press forming technology developed over many years in fuel supply unit processing. The inner part is processed in a progressive manner with groove and drawn shapes, and precision management of individual parts is conducted to ensure that five stacked sets can fit together with the outer part at the specified accuracy. This achieves both leak prevention and workability during fitting, leading to adoption by major Tier 1 companies.
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basic information
Material: Equivalent to SUS304 Product dimensions: t1.0 x 60 mm x 95 mm x 38 mm [when fitted] Process: Transfer press processing - Cleaning - Inspection
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Applications/Examples of results
This is a component for EGR coolers adopted by major Tier 1 suppliers. The product consists of a total of 19 fittings made up of the aforementioned outer male and female parts, two holds, seven sets of inner male and female parts, and seven fins sandwiched between the inner male and female parts. Our company manufactures four types of the outer male and female parts and inner male and female parts.
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Company information
Koukougyou Co., Ltd. has established a consistent production system from mold making to press processing and sub-assembly since its founding in 1964. As a press manufacturer equipped with development capabilities, we have grown by closely addressing our customers' challenges. We sincerely confront individual customer issues such as high purchase costs, labor-intensive processes, unstable quality, and inability to accommodate mass production. By proposing method replacements through repeated discussions, we solve problems and build a Win-Win relationship with our customers. We tackle customer challenges with outstanding technology and ideas, exceeding the limits of conventional press processing to produce stainless steel thick plate products, precision deep drawing, precision irregular shape drawing, and composite molding with other materials. If you have dissatisfaction or issues with the procurement of metal parts or the internal work using those parts, please feel free to reach out to us.