Title:
EVALUATION METHOD FOR POWDER FOR METAL ADDITIVE MANUFACTURING, EVALUATION PROGRAM, MANUFACTURING METHOD, INFORMATION PROCESSING DEVICE, AND METAL ADDITIVE MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/059060
Kind Code:
A1
Abstract:
The present invention can evaluate whether a powder for metal additive manufacturing is a powder for which smoking will not occur even when a preheating temperature is lowered. This evaluation method for a powder for metal additive manufacturing includes: an impedance measurement step in which the impedance of a metal powder is measured while the metal powder is heated; a capacitance component extraction step in which a capacitance component is extracted from the measured impedance; and an evaluation step in which, if the capacitance value becomes zero before the metal powder reaches a prescribed temperature, the metal powder is evaluated as being a powder material for metal additive manufacturing for which smoking will not occur during bombardment by an electron beam even when a preheating temperature is lowered.
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Inventors:
CHIBA AKIHIKO (JP)
KUDO TAKAHIRO (JP)
AOYAGI KENTA (JP)
KUDO TAKAHIRO (JP)
AOYAGI KENTA (JP)
Application Number:
PCT/JP2018/034701
Publication Date:
March 26, 2020
Filing Date:
September 19, 2018
Export Citation:
Assignee:
TECH RES ASSOCIATION FUTURE ADDITIVE MANUFACTURING (JP)
International Classes:
B22F3/16; B22F1/00; B22F1/16; B22F3/105; B33Y30/00; B33Y40/00; B33Y50/00
Domestic Patent References:
| WO2018122934A1 | 2018-07-05 | |||
| WO2017163404A1 | 2017-09-28 | |||
| WO2017163402A1 | 2017-09-28 |
Foreign References:
| US20170216915A1 | 2017-08-03 |
Attorney, Agent or Firm:
KATO Takashi et al. (JP)
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