Method for producing a piston for an internal combustion engine and piston produced by said method

• Main Authors: Mueller, Reiner, Boczek, Sascha-Oliver, Berr, Gerhard, Scharp, Rainer
• Format: Patent
• Language: English
• Published: 17.09.2019
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINED OPERATIONS; COMBUSTION ENGINES; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINE TOOLS; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PUNCHING METAL; SOLDERING OR UNSOLDERING; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS; WELDING; WORKING BY LASER BEAM

A method for producing a piston for an internal combustion engine may include the steps of: producing a first blank corresponding to a piston main body via a deformation process; producing a second blank corresponding to a piston ring part via at least one of a deformation process and a casting process; pre-machining the first blank and the second blank, and finishing a welding surface of the first blank and a welding surface of the second blank via machining; connecting the first blank and the second blank via welding the welding surface of the first blank to the welding surface of the second blank to form a piston body; and performing at least one of a secondary machining process and a finish machining process on the piston body to produce the piston.