Patent ID: 11858322
Assignee: KIA CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A method of manufacturing a frame structure of a vehicle, the method comprising:
forming a first member composed of a metal plate; and
forming a second member composed of a metal plate having a thickness thinner than that of the first member, the second member integrally connected to the first member by welding,
wherein a connection portion between the first member and the second member has an inclined surface, which is configured to obliquely connect an upper surface of the first member and an upper surface of the second member such that the upper surface of the second member is positioned to be lowered than the upper surface of the first member in a gradual manner, and
wherein the inclined surface is configured to be integrally connected with the upper surface of the first member and the upper surface of the second member in a way that the upper surface of the first member is higher than the upper surface of the second member,
wherein the connection portion is integrally attached to an end of the first member contacting an end of the second member.