Patent application EP20180596A (EP), filed 2020-06-17
Publication number: EP3753653A1
Title: POWDER FOR ADDITIVE MANUFACTURING, AND DIE-CASTING DIE PART
Abstract: The present invention relates to a powder for additive manufacturing, having a composition consisting of, in mass%: 0.25<C<0.40, 0.001≤Si≤0.15, 0.30≤Mn≤0.45, 5.0≤Cr≤5.5, 1.0≤Mo≤1.5, 0.35≤V≤0.45, 0.01≤N≤0.05, 0.01≤O≤0.04, and optionally, P<0.10, Cu<0.20, Ni<0.20, A1<0.05, Zr<0.05, S<0.20, Pb<0.20, Bi<0.20, Nb<0.20, Ti<0.20, B<0.10, and Co<0.20, with the balance being Fe and unavoidable impurities, in which a surface of the powder for additive manufacturing is coated with an oxide film, and the oxide film has a thickness of 3 nm or more and 30 nm or less.
IPC codes: B22F   1/    00            A I
B22F   1/    05            A I
B22F   1/   142            A I
B22F   1/   145            A I
B22F   1/    16            A I
B33Y  10/    00            A I
B33Y  70/    00            A I
B33Y  80/    00            A I
C22C  33/    02            A I
C22C  38/    24            A I
Claims: number: 1
text: A powder for additive manufacturing, having a composition consisting of, in mass%:
number: 2
text: The powder for additive manufacturing according to Claim 1, comprising at least one element selected from the group consisting of, in mass%:
number: 3
text: The powder for additive manufacturing according to Claim 1 or 2, comprising at least one element selected from the group consisting of, in mass%:
number: 4
text: A die-casting die part obtained by additive-manufacturing the powder for additive manufacturing according to any one of Claims 1 to 3.
Office action: search_report, dated 2020-12-23
Prior art cited: ref_id: JP2016145407A
ref_type: patent
severity: background
ref_id: JP2019112613A
ref_type: patent
severity: background
ref_id: JP2020043541A
ref_type: patent
severity: background
ref_id: WO2019220917A1
ref_type: patent
severity: background
ref_id: EP2939763A2
ref_type: patent
severity: background
ref_id: JP2016017200A
ref_type: patent
severity: background
ref_id: EP2939763
ref_type: patent
severity: background
ref_id: JP2016017200
ref_type: patent
severity: background
ref_id: WO2019220917
ref_type: patent
severity: background
Final disposition: pending (2020-12-23)