The present invention relates to a battery cell, a manufacturing method thereof, and a battery module comprising the same, and a battery cell related to one example of the present invention comprises an electrode assembly, a case accommodating the electrod...

A cylinder block manufacturing method including: machining an inner surface of a cylinder bore (3) of a cylinder block (1) into a first shape different from a target shape before a bearing cap (7) is attached to the cylinder block (1) so that the inner sur...

In a method for manufacturing a cylinder block provided with cylinder bores, the cylinder block is held by a clamp device, stress is generated in the cylinder block by a holding force of the clamp device to duplicate deformations of the cylinder bores afte...

A thermal spray coated piston ring having improved initial running-in propery, and having scuffing resistance and wear resistance is provided. The spray coating film (3) of the piston ring (1) contains from 2 to 40 mass % of Sn and from 5 to 50 mass % of g...

The cylinder running surface of a light metal alloy has a defined grip fitting structure at an uncoated cylinder running surface, where a wear layer can be bonded. The grip fitting structure (2) lies on the radial direction of the running surface. The coat...