Engis Corporation Offers Advanced Single Pass Bore Finishing Where applications, particularly in the automotive sector, demand high quality bore finishing, single-pass superabrasive solutions have proven to be extremely cost-effective, which is why Engis Corporation finds its customers are increasingly turning away from conventional honing and moving toward single-pass bore honing for the finishing of internal diameter bores. The Engis single-pass honing system provides major benefits which include lower labor costs through automated finishing, lower cost per hole through long tool life and improved bore quality, reduced rejects and higher production rates. To ensure customers obtain the maximum productivity from their high-tech honing solutions, Engis operates stringent quality procedures and both its diamond and cubic boron nitride (CBN) tooling packages are manufactured under ISO9002 certified quality control systems. This means very tight tolerances can be held consistently in a production environment, improving statistical process reliability. Engis diamond plated and superabrasive finishing tools, in standard, blind and semi-blind bores, are capable of achieving bore geometries to within 0.5um (0.000020”) and, because Engis tools use diamond abrasives, they cut cooler, maintaining their size and achieving extremely long tool life. – thus reducing the cost per finished item. At the company’s dedicated Bore Finishing Process Development Laboratories in Wheeling, Illinois, customers can work side-by-side with Engis engineers to test and improve their processes, step-by-step, including stock removal rates, bore geometry requirements and surface finish, to achieve their production engineering objectives. All this is possible because Engis single-pass bore finishing solutions are complete systems, engineered to work in harmony, from the tool and fixture design, through the machine design, engineering and manufacture to process development, metrology, automation to the in-field support.

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