Casting mold and method for producing a casting

A casting mold for producing a housing for an electric drive for a motor vehicle formed from a light metal alloy,

• wherein the casting mold has at least one sand core which is designed and arranged in the casting mold in such a way that the at least one sand core can be completely surrounded in a circumferential direction by a light metal melt with which the casting mold is filled to form the casting,
• wherein the at least one sand core is designed as a cooling channel core,
• wherein the at least one sand core is bent at least in some regions,
• wherein
• a ratio of a length of the sand core to a sand core cross-sectional size is between 7.5 and 38,
• the sand core cross-section size is the distance between two points of the sand core cross-section that are furthest apart,
• that the smallest sand core cross-sectional size in a sand core with regions with different sand core cross-sectional sizes is used to form the ratio, and
• the sand core cross-sectional size is at least 1.6 mm.