ring belt is machined out but rather a smooth mantle surface 25 on the blank 11 u2032 of the piston base body 11 as well as a smooth mantle surface 26 on the blank 12 u2032 of the piston ring element 12 are provided the blanks 11 u2032 12 u2032 can be cast forged or sintered by means of powder metallurgy depending on the selection of the material in the exemplary embodiment the crown region 27 a part 28 of the wall region of the combustion chamber bowl 24 is pre machined for example lathed into the blank 11 u2032 of the piston base body 11 furthermore a circumferential cooling channel part 23 a of the cooling channel 23 is pre machined this results in an outer joining surface 29 and an inner joining surface 31 in the exemplary embodiment the remaining part 28 u2032 of the wall region of the combustion chamber bowl is machined for example lathed into the blank 12 u2032 of the piston ring element 12 furthermore a circumferential upper cooling channel part 23 b of the cooling channel 23 is machined in this results in an outer joining surface 32 and an inner joining surface 33 the outer joining surface 29 of the blank 11 u2032 corresponds to the outer joining surface 32 of the blank 12 u2032 in corresponding manner the inner joining surface 31 of the blank 11 u2032 corresponds to the inner joining surface 33 of the blank 12 u2032 this means that the two blanks 11 u2032 12 u2032 can be connected with one another along their joining surfaces 29 31.