Laser cladding apparatus

A laser cladding and pipeline technology, which is applied in metal material coating process, coating and other directions, can solve the problems of difficulty in improving the operation efficiency of laser cladding equipment, increasing the frequency of pipeline cleaning, and not excessively increasing the exhaust air volume, etc. Achieve reliable separation, improve operating efficiency, and easy recycling

Active Publication Date: 2016-06-01
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In laser cladding equipment, if the air volume for sucking metal powder is increased, even the metal powder that should adhere to the valve seat will be sucked, so there may be cases where the exhaust air volume cannot be increased excessively.
[0009] Furthermore, in the prior art disclosed in Patent Document 1, since metal powder tends to accumulate on the horizontal (horizontal) portion of the pipe, the cleaning frequency of the pipe is increased.
[0010] In addition, in the prior art, in order not to reduce the air volume due to clogging of the filter holes, frequent filter maintenance (replacement, cleaning)
[0011] Therefore, conventionally, in the case of performing cladding processing while recovering metal powder, it has been difficult to improve the operating efficiency of the laser cladding apparatus.

Method used

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Embodiment Construction

[0027] Next, embodiments of the invention will be described.

[0028] First, use figure 1 and figure 2 A laser cladding apparatus according to an embodiment of the present invention will be described.

[0029] Additionally, the following, will figure 1 The direction of the arrow X shown in image 3 same as in ). Additionally, will be compared with figure 1 The direction perpendicular to the arrow X shown in is defined as the horizontal direction.

[0030] Here, first, a cylinder head as a workpiece to be welded by a laser welding device will be described.

[0031] Such as figure 1 As shown, the cylinder head 1 which is the target workpiece of the welding process in this embodiment is one of the constituent parts of the engine, and a plurality of ports (exhaust port 2 and intake port 3) of various types are formed respectively, and each Ports 2 and 3 are processed parts of cladding process.

[0032] Each port 2, 3 is formed with a valve seat portion 2a, 3a, which is a...

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Abstract

A laser cladding apparatus is capable of easily collecting metal powder and improving operational efficiency. The laser cladding apparatus clads 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.

Description

technical field [0001] The present invention relates to techniques of laser cladding apparatuses, and more specifically, relates to techniques for improving the operating efficiency of laser cladding apparatuses by facilitating recovery of metal powder remaining during cladding processing. Background technique [0002] Conventionally, a technique is known in which a valve seat portion of a cylinder head is subjected to cladding processing in order to improve wear resistance or the like. [0003] The welding process is a process of irradiating the valve seat portion with laser light and spraying metal powder on the irradiated portion, whereby the metal powder is melted and the valve seat portion is partially covered with a different type of metal. [0004] During the cladding process, not all of the sprayed metal powder adheres to the valve seat portion, but surplus metal powder is generated. If the remaining metal powder is left unattended, the remaining metal powder may en...

Claims

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Application Information

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IPC IPC(8): C23C24/10
Inventor谷中耕平
OwnerTOYOTA JIDOSHA KK