Manufacturing method of joined body and joined body
AssigneeKyb-Ys Co., Ltd.
InventorYasuyuki Nagai
Life of this patent
Estimating the term…
Abstract
A manufacturing method for manufacturing a cylinder tube includes a joining step of joining a tube main body and a head member by friction welding by abutting an end surface of the tube main body and a flange portion of the head member in a state in which a through hole of the tube main body and a projecting portion of the head member are fitted to each other so as to form a predetermined clearance. In the joining step, a non-contact portion of the flange portion of the head member facing the clearance is joined to the tube main body by heating the non-contact portion with friction heat generated by relative rotation between the tube main body and the head member.
Claims7
A manufacturing method for manufacturing a joined body by joining a first member and a second member, the first member having a hollow portion formed in an end surface and the second member having a projecting portion that is to be fitted into the hollow portion and a flange portion that is provided so as to extend radially outwards from the projecting portion, the manufacturing method comprising:
- a joining step of joining the first member and the second member by friction welding by abutting the end surface of the first member and the flange portion of the second member in a state in which the hollow portion of the first member and the projecting portion of the second member are fitted to each other so as to form a clearance between an outer peripheral surface of the projecting portion of the second member and an inner peripheral surface of the hollow portion of the first member, a surface of the flange portion facing the first member including a contact portion, through which the flange portion is in direct contact with the end surface of the first member, and a non-contact portion exposed to the clearance, wherein
- in the joining step, the non-contact portion of the surface of the flange portion facing the clearance is joined to the first member via a material that plastically flows into the clearance and that contacts the outer peripheral surface of the projecting portion of the second member and the inner peripheral surface of the hollow portion of the first member by heating the non-contact portion with friction heat generated by relative rotation between the first member and the second member, and
- the joined body is a cylinder tube or a piston rod used for a fluid pressure cylinder.
A manufacturing method of the joined body by joining a first member and a second member, the first member having a hollow portion formed in an end surface and the second member having a projecting portion that is to be fitted into the hollow portion and a flange portion that is provided so as to extend radially outwards from the projecting portion, the manufacturing method comprising:
- a joining step of joining the first member and the second member by friction welding by abutting the end surface of the first member and the flange portion of the second member in a state in which the hollow portion of the first member and the projecting portion of the second member are fitted to each other so as to form a clearance between an outer peripheral surface of the projecting portion of the second member and an inner peripheral surface of the hollow portion of the first member, a surface of the flange portion facing the first member including a contact portion, through which the flange portion is in direct contact with the end surface of the first member, and a non-contact portion exposed to the clearance, wherein
- in the joining step, the non-contact portion of the surface of the flange portion facing the clearance is joined to the first member by heating the non-contact portion with friction heat generated by relative rotation between the first member and the second member,
- the joined body is a cylinder tube or a piston rod used for a fluid pressure cylinder, and
- a distance between the outer peripheral surface of the projecting portion of the second member and the inner peripheral surface of the follow portion of the first member, in a radial direction of the joined body, is constant in the entire clearance.
Dependencies are inferred from the claim text.