Manufacturing equipment and manufacturing method for metal powder sintered component

Inactive Publication Date: 2010-09-16
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The present invention has been made to solve the above described problems. An object of the present invention is to provide manufacturing equipment and manufacturing methods for a metal powd

Problems solved by technology

However, in the manufacturing equipment, if the rotation angles of the scan mirrors 134 are increased to enlarge the irradiated area, focusing and so on become difficult and thus the accuracy of light beam L scanning is reduced.
Further, since the irradiation height is fixed, the accuracy of light beam L scanning cannot be adjusted. FIG. 23 shows the relationship between the irradiation height and the irradiated area.
A deviation of the

Method used

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  • Manufacturing equipment and manufacturing method for metal powder sintered component
  • Manufacturing equipment and manufacturing method for metal powder sintered component
  • Manufacturing equipment and manufacturing method for metal powder sintered component

Examples

Experimental program
Comparison scheme
Effect test

Example

First Embodiment

[0022]Referring to FIG. 1 to FIG. 4, manufacturing equipment for a metal powder sintered component (hereinafter, referred to as manufacturing equipment) according to a first embodiment of the present invention is described. In FIG. 1 to FIG. 3, the manufacturing equipment 1 comprises a powder layer forming portion (powder layer forming means) 2 that supplies metal powder 11 and forms a powder layer 12, a light beam irradiator (light beam irradiation means) 3 that irradiates a given point on a powder layer 12, which is formed by the powder layer forming portion 2, with light beams so as to sinter the powder layer 12 and thus form a sintered layer 13, a cutter (cutting means) 4 that cuts a three-dimensionally shaped object in which sintered layers 13 are integrally stacked, and a controller 5 that controls the operation of each portion. In this specification, a metal powder sintered component in process is referred to as a shaped object.

[0023]The powder layer forming p...

Example

Second Embodiment

[0028]Referring to FIG. 5 to FIG. 10, a second embodiment of the present invention is described. In manufacturing equipment 1 according to this embodiment, a scan head 37 moves not in a direction parallel to the irradiated surface but in a direction normal thereto, unlike the first embodiment. Components like those in the above described embodiment are denoted by like numerals in the drawings and will not be further explained (the same shall apply hereinafter). In FIG. 5 to FIG. 7, the scan head 37 moves in a direction normal to the surface irradiated with light beams by a scan head 37z.

[0029]The operation of the manufacturing equipment 1 configured as described above is described. FIGS. 8A to 8C show the operation in sequence. First, like FIG. 4A in the first embodiment, a powder layer 12 is formed on a substrate 23 (FIG. 8A).

[0030]Subsequently, the scan head 37 rotates scan mirrors to direct light beams L over the powder layer 12 for scanning so that the powder l...

Example

Third Embodiment

[0034]Referring to FIG. 11, a third embodiment of the present invention is described. In manufacturing equipment 1 according to this embodiment shown in FIG. 11, a scan head 37 moves in a direction parallel to and in a direction normal to the irradiated surface. A scan head Z shaft 37z is connected to a scan head Y shaft 37y, and the scan head 37 is held on the scan head Z shaft 37z. With this configuration, since the scan head 37 can move not only in a direction parallel to the irradiated surface but also in a direction normal to the irradiated surface, effects similar to those of the above described first and second embodiments can be achieved.

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Abstract

Manufacturing equipment for a metal powder sintered component includes: a powder layer forming portion that supplies metal powder to form a powder layer; a light beam irradiator that irradiates a give point on the powder layer with light beams to sinter the powder layer and thus form a sintered layer; and a cutter that cuts a shaped object in which sintered layers are integrally stacked. The light beam irradiator has a scan head X shaft that moves a scan head in X direction parallel to a surface irradiated with light beams and a scan head Y shaft that moves the scan head in Y direction, so that the scan head moves in a direction parallel to the irradiated surface to perform irradiation with light beams. Since the scan head moves parallel to the irradiated surface, the irradiated area can be increased. Since the irradiation height can be small, the accuracy of light beam scanning can be enhanced.

Description

TECHNICAL FIELD[0001]The present invention relates to manufacturing equipment and manufacturing methods for forming a metal powder sintered component by irradiating metal powder with light beams.BACKGROUND ART[0002]Equipment for manufacturing a metal powder sintered component by irradiating a powder layer, which is made of metal powder, with light beams to melt the powder layer for formation of a sintered layer and repeating the process of forming another powder layer on the sintered layer and irradiating it with light beams (hereinafter, referred to as manufacturing equipment) is known in the prior art. FIG. 22 shows a configuration of the manufacturing equipment. The manufacturing equipment 101 comprises a material tank 121 that supplies metal powder 111, a substrate 123 on which a powder layer 112 is placed, a formation table 124 that holds the substrate 123 and moves up and down, a wiper 126 that spreads the metal powder 111 contained in the material tank 121 onto the substrate ...

Claims

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Application Information

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IPC IPC(8): B22F7/04
CPCB22F2003/1056B22F3/1055Y02P10/25B22F12/00B22F12/226B22F10/28B22F12/222B22F12/224
Inventor HIGASHI, YOSHIKAZUFUWA, ISAOABE, SATOSHITOGEYAMA, HIROHIKOYOSHIDA, NORIOSHIMIZU, TAKASHI
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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