Laser cladding apparatus

Patent metadata

Field	Value
Publication number	US-2016144455-A1
Application number	US-201514934815-A
Country	US
Kind code	A1
Filing date	Nov 6, 2015
Priority date	Nov 21, 2014
Publication date	May 26, 2016
Grant date	—

Abstract

A laser cladding apparatus is capable of easily collecting metal powder and improving operational efficiency. The laser cladding apparatus dads valve seats of exhaust ports formed in a cylinder head by irradiating the valve seats with a laser beam while supplying metal powder to the valve seats. The laser cladding apparatus includes: a duct connected to the exhaust ports; and a dust collector that sucks a surplus of the metal powder generated at the valve seats. The duct has a vertical part formed in a straight tube and arranged so that the axis thereof is substantially vertical, and a branched part branched from the vertical part and arranged so that the branched direction is upward relative to the horizontal direction. The dust collector is connected to the tip of the branched part.

First claim

What is claimed is:

1 . A laser cladding apparatus that dads a portion of a workpiece by irradiating the portion with a laser beam while supplying metal powder to the portion, comprising:
a duct connected to the portion of the workpiece; and a dust collector that sucks a surplus of the metal powder generated at the portion of the workpiece, wherein the duct has a vertical part that is formed in a straight tube and that is arranged so that an axis of the vertical part is substantially vertical, and a branched part that is branched from the vertical part and that is arranged so that a direction in which the branched part is branched is upward relative to a horizontal direction, and the dust collector is connected to a tip of the branched part.

2 . The laser cladding apparatus according to claim 1 , wherein
the branched part forms an acute angle with a portion of the vertical part situated above a connection between the vertical part and the branched part.

3 . The laser cladding apparatus according to claim 1 , wherein
the duct has a diameter-reduction part that is arranged below the connection between the vertical part and the branched part, and that has a narrowed portion whose duct area is smaller than that of the portion of the vertical part situated above the connection between the vertical part and the branched part, and a lower end of the diameter-reduction part is open below the narrowed portion.

Assignees

• Toyota Motor Co Ltd

Inventors

• Yanaka Kohei

Classifications

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B23K26/34

  Laser welding for purposes other than joining · CPC title

• B23K26/144 Primary

  the fluid stream containing particles, e.g. powder · CPC title

• B23K26/142

  for the removal of by-products · CPC title

• C23C24/103 Primary

  Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides · CPC title