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    • 3. 发明授权
    • Method for the production of a piston
    • 生产活塞的方法
    • US09364923B2
    • 2016-06-14
    • US14542218
    • 2014-11-14
    • Mahle International GmbH
    • Sascha-Oliver Boczek
    • B23K31/02B23K37/04B23P15/10F02F3/00F02F3/22B23K37/053B23K20/12
    • B23K37/0435B23K20/129B23K37/053B23P15/10F02F3/003F02F3/22F02F2003/0061
    • The present invention relates to a method for the production of a piston (1), composed of a piston upper part (2) and a piston lower part (3), of an internal combustion engine, in which the piston upper part (2) is welded with the piston lower part (3) via a contact surface (4) and thereby a cooling duct (5), delimited therebetween, is formed. It is essential to the invention here that for the production or keeping free of an net opening (6) and/or of an outlet opening (7) of the cooling duct (5) during or immediately after the welding of the piston upper part (2) with the piston lower part (3) at least one pin (8) is held out from the piston lower part (3) in the cooling duct (5) or is pushed therein and is drawn out again after the welding process, so that a welding bead (9) occurring on the welding process does not constrict a cross-section of the net opening (6) and/or of the outlet opening (7). Hereby, the piston (1) can be produced at a comparatively favorable cost.
    • 本发明涉及一种用于生产内燃机的活塞(1),其由活塞上部(2)和活塞下部(3)组成的方法,其中活塞上部(2) 通过接触表面(4)与活塞下部(3)焊接,从而形成在其间界定的冷却管道(5)。 本发明在此重要的是,在活塞上部件的焊接期间或紧接其后的过程中生产或保持没有冷却管道(5)的净开口(6)和/或出口开口(7) 如图2所示,在活塞下部(3)中,至少一个销(8)从冷却管道(5)中的活塞下部(3)被推出,或被推入其中,并且在焊接过程之后被再次拉出,因此 在焊接过程中发生的焊道(9)不会压缩净开口(6)和/或出口(7)的横截面。 因此,可以以相对有利的成本生产活塞(1)。
    • 5. 发明申请
    • METHOD FOR THE PRODUCTION OF A PISTON
    • 活塞生产方法
    • US20150060526A1
    • 2015-03-05
    • US14542218
    • 2014-11-14
    • Sascha-Oliver Boczek
    • Sascha-Oliver Boczek
    • B23K37/04F02F3/22F02F3/00
    • B23K37/0435B23K20/129B23K37/053B23P15/10F02F3/003F02F3/22F02F2003/0061
    • The present invention relates to a method for the production of a piston (1), composed of a piston upper part (2) and a piston lower part (3), of an internal combustion engine, in which the piston upper part (2) is welded with the piston lower part (3) via a contact surface (4) and thereby a cooling duct (5), delimited therebetween, is formed. It is essential to the invention here that for the production or keeping free of an inlet opening (6) and/or of an outlet opening (7) of the cooling duct (5) during or immediately after the welding of the piston upper part (2) with the piston lower part (3) at least one pin (8) is held out from the piston lower part (3) in the cooling duct (5) or is pushed therein and is drawn out again after the welding process, so that a welding bead (9) occurring on the welding process does not constrict a cross-section of the inlet opening (6) and/or of the outlet opening (7).Hereby, the piston (1) can be produced at a comparatively favourable cost.
    • 本发明涉及一种用于生产内燃机的活塞(1),其由活塞上部(2)和活塞下部(3)组成的方法,其中活塞上部(2) 通过接触表面(4)与活塞下部(3)焊接,从而形成在其间界定的冷却管道(5)。 在这里,本发明的关键在于,在活塞上部件的焊接期间或之后,在活塞上部(5)的焊接期间或之后,生产或保持没有冷却管道(5)的入口(6)和/或出口开口(7) 如图2所示,在活塞下部(3)中,至少一个销(8)从冷却管道(5)中的活塞下部(3)被推出,或被推入其中,并且在焊接过程之后被再次拉出,因此 在焊接过程中发生的焊道(9)不会压缩入口(6)和/或出口(7)的横截面。 因此,可以以相对有利的成本生产活塞(1)。