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US 11,376,646 B2Granted
Hot-stamped trim component
AssigneeToyoda Iron Works Co., Ltd.
InventorsKazuhiko Yokoi, Yasuhisa Sakashita
Life of this patent
Estimating the term…
Abstract
A hot-stamped and trimmed part is produced by hot pressing a blank and then cutting off an excess outer peripheral portion by laser machining, an outer peripheral shape of the hot-stamped and trimmed part includes a laser trim line formed by cutting in the laser machining, and a press trim line formed by shearing in the hot pressing or pressing performed before the hot pressing, and the laser trim line and the press trim line are connected via a projecting corner portion.
Claims6
A method for producing a hot-stamped and trimmed part, comprising:
- hot stamping a blank to form a hot-stamped part, and
- subsequently cutting off a respective excess peripheral portion from each of two opposite longitudinal ends of the hot-stamped part by laser machining to form a hot-stamped and trimmed part, wherein the hot-stamped and trimmed part has an outline including:
- a press trim line sheared in the step of hot stamping or in a step of pressing the blank performed before the step of hot stamping, and
- a first laser trim line and a second laser trim line cut in the step of laser machining, wherein the press trim line and the first laser trim line together define an outwardly projecting angle, wherein:
- the press trim line is positioned between the first and second laser trim lines in a longitudinal direction of the hot-stamped and trimmed part.
2 more elements
Dependencies are inferred from the claim text.