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US 9,174,260 B2Granted
Hot press product and method of forming the same
AssigneeTopre Corporation
InventorNaoya Yuasa
Life of this patent
Estimating the term…
Abstract
Provided is a method of forming a hot press product, the method including: a positioning and placing step of positioning a material, which is heated, and placing the material on a mold through engagement between a positioning pin provided to the mold and a positioning hole provided in the material; and a pressing and hole expanding step of performing press forming on the material through use of the mold, and expanding the positioning hole through bulging of a peripheral part of the positioning hole of the material) when the press forming is performed.
Claims3
A method of forming a hot press product, the method comprising:
- a positioning and placing step of positioning a heated material and placing the heated material on a mold through engagement between a positioning pin provided to the mold and a positioning hole provided in the heated material;
- and
- a pressing and hole expanding step of press forming the heated material through use of the mold after the heated material is positioned and placed on the mold in the positioning and placing step, and expanding the positioning hole through bulging of a peripheral part of the positioning hole of the material when the press forming is performed, wherein the bulging of the peripheral part forms a bulging portion that comprises a circular truncated cone shape portion and a bottom portion, and wherein the bottom portion is larger than the positioning hole.
Dependencies are inferred from the claim text.