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High-temperature wear-resisting and corrosion-resisting steel powder for additive manufacturing and additive manufacturing method

A technology of additive manufacturing and corrosion-resistant steel, which is applied in the field of additive manufacturing to achieve high hardness, good high temperature wear resistance, and good tempering stability

Active Publication Date: 2016-08-24
XIAN BRIGHT ADDTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the high-temperature wear-resistant and corrosion-resistant steels used for additive manufacturing mainly include 316L, H13 and 17-4PH, etc., and almost no steel has the characteristics of wear resistance, impact resistance, high hardness and thermal fatigue resistance at the same time

Method used

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  • High-temperature wear-resisting and corrosion-resisting steel powder for additive manufacturing and additive manufacturing method
  • High-temperature wear-resisting and corrosion-resisting steel powder for additive manufacturing and additive manufacturing method
  • High-temperature wear-resisting and corrosion-resisting steel powder for additive manufacturing and additive manufacturing method

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Experimental program
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Effect test

Embodiment 1

[0044] Prepare high-performance high-temperature wear-resistant and corrosion-resistant steel powder for additive manufacturing, the mass percentage content of each element in the powder material is:

[0045] element

C

mn

Si

Cr

Ni

Mo

V

Nb

Fe

Wt.%

0.2

1.5

0.6

9.0

6.0

1.0

0.2

0.3

margin

[0046] Additive manufacturing methods are:

[0047] Steel powder materials with a particle size of 15-53 μm and a purity of ≥99.99% were kept at 120°C for 4 hours, and then put into the powder cylinder of the additive manufacturing equipment. Mill the surface of the H13 steel substrate with a size of 250mm (length) × 250mm (width) × 20mm (thickness) with a milling machine until the surface roughness is not greater than Ra6.3, and clean the surface of the substrate with acetone, and install it after drying. Into the additive manufacturing equipment fixed. Use the subsection software to obtain slices of each lay...

Embodiment 2

[0049] The steel powder in the above-mentioned embodiment 1 was replaced with the steel powder having the following component contents, and the parts were formed, and the other processes were the same.

[0050] element

Embodiment 3

[0052]The steel powder in the above-mentioned embodiment 1 was replaced with the steel powder having the following component contents, and the parts were formed, and the other processes were the same.

[0053] element

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Abstract

The invention discloses high-temperature wear-resisting and corrosion-resisting steel powder for additive manufacturing. The high-temperature wear-resisting and corrosion-resisting steel powder is prepared from the following elements in percentage by weight: 0.1 to 0.3 weight percent of C, 1.0 to 1.5 weight percent of Mn, 0.2 to 0.6 weight percent of Si, 5 to 9 weight percent of Cr, 2.0 to 6.0 weight percent of Ni, 1.0 to 1.5 weight percent of Mo, 0.2 to 0.4 weight percent of V, 0.3 to 0.7 weight percent of Nb, and the balance of Fe, wherein the sum of mass percent of all the elements is 100 percent. A method for additive manufacturing by using the steel powder comprises the following steps of putting the steel powder into additive manufacturing equipment; partitioning a part to be manufactured and setting laser process parameters: output power is 200 to 400W, the spot diameter is 0.06 to 0.1mm, the scanning speed is 960 to 1500mm / s, and track pitch is 0.06 to 1.2mm; then importing partitioned programs into the additive manufacturing equipment; filling the additive manufacturing equipment with high-purity argon; finally, printing layer by layer, and obtaining a high-temperature wear-resisting and corrosion-resisting steel part at last.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a high-temperature wear-resistant and corrosion-resistant steel powder for additive manufacturing, and also relates to an additive manufacturing method using the powder material. Background technique [0002] High-temperature, wear-resistant and corrosion-resistant steel is a commonly used ferrous metal material with excellent physical, chemical and mechanical properties, and is widely used in construction, medical, national defense, mold and other fields. The traditional processing method of high-temperature wear-resistant and corrosion-resistant steel parts is mainly mechanical processing, which is a typical subtractive manufacturing process. The part preparation cycle is long and the material utilization rate is low. Especially because it has high hardness and high strength, traditional processing methods are difficult to process. , which greatly lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/18C22C38/08C22C38/12C22C38/44C22C38/46C22C38/48B22F3/105B22F1/00B33Y10/00B33Y70/00
CPCB22F1/0003C22C38/02C22C38/04C22C38/08C22C38/12C22C38/18C22C38/44C22C38/46C22C38/48B33Y10/00B33Y70/00B22F10/00B22F10/34B22F10/28B22F10/36B22F10/366B22F10/32Y02P10/25
Inventor 熊嘉锋赵晓明
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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