Methods and compositions for making a near net shape article
OwnerBadri K. Narayanan, Michael Andrew Kottman +1inventors
InventorsBadri K. Narayanan, Michael Andrew Kottman, Vaidyanath Bharata Rajan
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Abstract
Methods and compositions for making a near net shape article are provided. The method includes depositing a first material using an additive manufacturing technique to form a near net shape article, such as tooling. The first material has a low carbon content yet possesses sufficient hardness so that the article may be used in various tooling applications.
Claims20
A method of making a near net shape article, the method comprising:
- depositing a first material using an additive manufacturing technique to form a near net shape article,
- wherein the first material comprises at least 8 wt % Cr, and less than or equal to 0.15 wt % C;
- wherein the first material is deposited at a rate of at least 112 cm3/hr;
- and
- wherein the first material as deposited has a hardness of 25 HRC to 50 HRC.
The method according to claim 6, wherein the subtractive manufacturing technique comprises one or more of milling, turning, and drilling.
A method of making a near net shape article, the method comprising:
- depositing a first material using an additive manufacturing technique to form a near net shape article,
- wherein the first material comprises 11 wt % to 14 wt % Cr, and 0.02 wt % to 0.15 wt % C;
- wherein the first material is deposited at a rate of 112 cm3/hr to 570 cm3/hr;
- and
- wherein the first material as deposited has a hardness of 25 HRC to 50 HRC.
Dependencies are inferred from the claim text.