Corresponds to contour accuracy requirements of 100 points in the joint area! Also capable of bar ring processing right at the edge of the bent surface!
■This product, "Shell for EGR Cooler," is a specially shaped stamping that meets the contour accuracy requirement of 100 microns for fitting purposes. ■It is a complex shaped stamping used by fitting the upper and lower parts together, requiring optimal clearance to ensure that customers can assemble smoothly and prevent coolant leakage during use. ■Made from stainless steel with significant springback, both the upper and lower parts require a contour accuracy of 100 microns, which is addressed using the uniquely shaped pressing technology developed over many years in fuel supply unit processing. ■The end face clearance during fitting is achieved at 0.16 mm. ■This product also accommodates barrelling processing, which is said to be very difficult, at the bending end face. *For more details, please feel free to contact us.
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basic information
【Dimensions Example】t1.0 x 58mm x 137mm x 25mm (when fitted) 【Material】Equivalent to SUS304 【Main Tolerances】Profile tolerance 0.08, Flatness 0.1, Longitudinal tolerance range for fitting 0.06 Fitting clearance 0.16, Projection height 0.05, Hole diameter 0.1 and many other specified tolerances 【Processing Details】Transfer press processing - Cleaning (inline) - Inspection (inline)
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Applications/Examples of results
This product, which requires a balance between leak prevention adhesion and workability during fitting, has been adopted by major Tier 1 companies. For more details, please feel free to contact us.
Detailed information
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Burring processing at the edge of the bend. Due to the customer's design requirements, we were asked to perform burring processing that rises almost directly from the edge of the bend, but after much trial and error, we were able to accommodate this request.
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Mated state. The outer and lower parts are meshing together in a perfect balance.
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Mating end face This is what the mating part looks like from the end face side. It accommodates a clearance of 0.16 mm max.
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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.
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