Title:
IMPELLER MANUFACTURING METHOD ACCORDING TO THERMOFUSION LAMINATION FORMING USING DISSIMILAR MATERIAL AND IMPELLER
Document Type and Number:
Japanese Patent JP2017180177
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of an impeller and the impeller capable of imparting erosion resistance while suppressing cost without increasing manufacturing processes.SOLUTION: In a method of manufacturing an impeller 10 according to thermofusion lamination forming, the impeller 10 in which material of a second kind of powder 202 is contained on a surface 15A of a wall 15 for dividing channels 14 of the impeller 10 and erosion resistance is imparted thereto is formed by repeating a first step S1 for supplying at least the first kind of powder 201, of the first kind of powder 201 consisting of metal material and a second kind of powder 202 capable of imparting erosion resistance, a second step S2 for applying an electron beam EB to a specified range in a target surface Tg based on cross-section data and a third step S3 for displacing a layer Ly formed through fusion and solidification by a thickness of the layer Ly with respect to a target surface Tg such that the layer Ly is laminated.SELECTED DRAWING: Figure 3
Inventors:
KAWASUMI SOSUKE
KONNO YUYA
NAKANIWA TERUHIRO
KONNO YUYA
NAKANIWA TERUHIRO
Application Number:
JP2016065615A
Publication Date:
October 05, 2017
Filing Date:
March 29, 2016
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP
MITSUBISHI HEAVY IND LTD
MITSUBISHI HEAVY IND LTD
International Classes:
F04D29/28; B22F3/105; B22F3/16; B33Y10/00; B33Y80/00; F04D29/02; F04D29/62
Attorney, Agent or Firm:
Mitsuru Oba
Horikawa Miyuki
Yuko Otake
Yamashita Seiko
Horikawa Miyuki
Yuko Otake
Yamashita Seiko
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