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US 12,109,763 B2Granted
Laser welding plastic segments
AssigneeCanon Virginia, Inc.
InventorsJoel C. Johnson, Takeshi Mochida, Terry Speed
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to methods and components for the bonding together of plastic components during a manufacturing and/or assembly process to create molds for lost-wax casting.
Claims13
At least two resin parts to be assembled by a laser welding process for creating a resin mold for a lost-wax casting process, the at least two resin parts comprising:
- a first resin part including:
- a top surface;
- a side surface;
- and
- an edge portion between the top surface and the side surface, wherein the edge portion includes a protruding portion protruding outwardly from the top surface, and
- a second resin part including:
- a top surface;
- a side surface to be mated with the side surface of the first resin part;
- and
- an edge portion, between the top surface of the second resin part and the side surface of the second resin part, wherein the edge portion of the second resin part includes a protruding portion protruding outwardly from the top surface of the second resin part, wherein the protruding portion of the second resin part is mated with the protruding portion of the first resin part to form a single bump with a seam line on a continuous surface of the single bump, and wherein the single bump protrudes outwardly from the top surface of the first resin part and the top surface of the second resin part,
- wherein a dimension of a weld seam between the first resin part and the second resin part is defined by at least a weld angle with a range of 15 to 75 degrees.
8 more elements
A method of assembling at least two resin parts to create a resin mold for a lost-wax casting process, the method comprising:
- providing a first resin part including a top surface, a side surface, and an edge portion between the top surface and the side surface, wherein the edge portion includes a first protruding portion protruding outwardly from the top surface;
- providing a second resin part including a top surface, a side surface to be mated with the side surface of the first resin part, and an edge portion between the top surface of the second resin part and the side surface of the second resin part, wherein the edge portion of the second resin part includes a protruding portion protruding outwardly from the top surface of the second resin part, wherein the protruding portion of the second resin part is to be mated with the protruding portion of the first resin part;
- positioning the first resin part and the second resin part so that the side surface of the first resin part and side surface of the second resin part face each other;
- and
- performing a laser welding process to irradiate a laser onto at least the protruding portion of the first resin part or the protruding portion of the second resin part to form a single bump with a seam line with a continuous surface of the single bump that outwardly protrudes from the top surface of the first resin part and the top surface of the second resin part;
- wherein a dimension of a weld seam between the first resin part and the second resin part is defined by at least a weld angle with a range of 15 to 75 degrees.
3 more elements
Dependencies are inferred from the claim text.