Method of making a projectile by metal injection molding
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-030/02
B22F-005/00
C22C-038/52
B22F-001/00
C22C-038/50
C22C-038/48
C22C-038/44
C22C-038/42
C22C-038/18
C22C-038/12
C22C-038/10
C22C-038/08
C22C-038/06
C22C-038/04
C22C-038/02
C22C-038/00
C22C-014/00
F42B-033/00
F42B-014/06
B22F-003/24
B22F-003/10
B22F-003/00
C22C-038/58
출원번호
US-0862988
(2015-09-23)
등록번호
US-10081057
(2018-09-25)
발명자
/ 주소
Burrow, Lonnie
출원인 / 주소
True Velocity, Inc.
대리인 / 주소
Singleton, Chainey P.
인용정보
피인용 횟수 :
0인용 특허 :
127
초록▼
The present invention provides a method of making a metal ammunition projectile by metal injection molding comprising the steps of: providing a projectile mold to form a nose extending essentially symmetrically to a shoulder; and an essentially cylindrical bearing surface extending from the shoulder
The present invention provides a method of making a metal ammunition projectile by metal injection molding comprising the steps of: providing a projectile mold to form a nose extending essentially symmetrically to a shoulder; and an essentially cylindrical bearing surface extending from the shoulder to a base; providing a metal injection molding feedstock comprising a powdered metal and a first binding agent and a second binding agent; injection molding the metal injection molding feedstock into the projectile mold to form a first projectile having a first size; debinding the first projectile to remove the first binding agent; and sintering the first projectile to remove the second binding agent and form a projectile having a second size.
대표청구항▼
1. A method of making a metal ammunition projectile by metal injection molding comprising the steps of: providing a projectile mold to form a nose extending symmetrically to a shoulder; and an essentially cylindrical bearing surface extending from the shoulder to a base;providing a metal injection m
1. A method of making a metal ammunition projectile by metal injection molding comprising the steps of: providing a projectile mold to form a nose extending symmetrically to a shoulder; and an essentially cylindrical bearing surface extending from the shoulder to a base;providing a metal injection molding feedstock comprising a powdered metal and at least a first binding agent and a second binding agent;injection molding the metal injection molding feedstock into the projectile mold to form a first projectile having a first size;debinding the first projectile to remove the first binding agent; andsintering the first projectile to remove the second binding agent and form a projectile having a second size. 2. The method of claim 1, wherein the powdered metal comprises stainless steel, brass, ceramic alloys, tungsten, tungsten carbide, carballoy, ferro-tungsten, titanium, copper, cobalt, nickel, uranium, depleted uranium, alumina oxide, zirconia and aluminum. 3. The method of claim 1, wherein the powdered metal comprises stainless steel, brass, or ceramic alloys. 4. The method of claim 1, wherein the powdered metal comprises 102, 174, 201, 202, 300, 302, 303, 304, 308, 309, 316, 316L, 316Ti, 321, 405, 408, 409, 410, 415, 416, 416R, 420, 430, 439, 440, 446 or 601-665 grade stainless steel. 5. The method of claim 1, wherein the second size is 5 percent to 30 percent smaller than the first size. 6. The method of claim 1, wherein the second size is 10 percent to 20 percent smaller than the first size. 7. The method of claim 1, wherein the second size is 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 percent smaller than the first size. 8. The method of claim 1, wherein the projectile comprises a cannelure formed on an outer circumferential surface of the cylindrical bearing surface intermediate the shoulder and the base. 9. The method of claim 1, wherein the projectile comprises more than 1 cannelure formed on an outer circumferential surface of the cylindrical bearing surface intermediate the shoulder and the base. 10. The method of claim 1, wherein more than 1 cannelure comprises 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 cannelures formed on an outer circumferential surface of the cylindrical bearing surface intermediate the shoulder and the base. 11. The method of claim 1, wherein the metal ammunition projectile comprises stainless steel, brass, ceramic alloys, tungsten, tungsten carbide, carballoy, ferro-tungsten, titanium, copper, uranium, depleted uranium, and alumina. 12. The method of claim 1, wherein the powdered metal comprises: a) 2-16% Ni; 10-20% Cr; 0-5% Mo; 0-0.6% C; 0-6.0% Cu; 0-0.5% Nb+Ta; 0-4.0% Mn; 0-2.0% Si and the balance Fe;b) 2-6% Ni; 13.5-19.5% Cr; 0-0.10% C; 1-7.0% Cu; 0.05-0.65% Nb+Ta; 0-3.0% Mn; 0-3.0% Si and the balance Fe;c) 3-5% Ni; 15.5-17.5% Cr; 0-0.07% C; 3-5.0% Cu; 0.15-0.45% Nb+Ta; 0-1.0% Mn; 0-1.0% Si and the balance Fe;d) 10-14% Ni; 16-18% Cr; 2-3% Mo; 0-0.03% C; 0-2% Mn; 0-1% Si and the balance Fe;e) 12-14% Cr; 0.15-0.4% C; 0-1% Mn; 0-1% Si and the balance Fe;f) 16-18% Cr; 0-0.05% C; 0-1% Mn; 0-1% Si and the balance Fe;g) 3-12% aluminum, 2-8% vanadium, 0.1-0.75% iron, 0.1-0.5% oxygen, and the remainder titanium; orh) 6% aluminum, 4% vanadium, 0.25% iron, 0.2% oxygen, and the remainder titanium. 13. The method of claim 1, further comprising the step of applying a metal coating over the projectile. 14. The method of claim 1, wherein the projectile is 5.56 mm, 7.62 mm, 308, 338, 3030, 3006, 50 caliber, 45 caliber, 380 caliber, 38 caliber, 9 mm, 10 mm, 12.7 mm, 14.5 mm, 14.7 mm, 20 mm, 25 mm, 30 mm, 40 mm, 57 mm, 60 mm, 75 mm, 76 mm, 81 mm, 90 mm, 100 mm, 105 mm, 106 mm, 115 mm, 120 mm, 122 mm, 125 mm, 130 mm, 152 mm, 155 mm, 165 mm, 175 mm, 203 mm, 460 mm, 8 inch, or 4.2 inch. 15. The method of claim 1, wherein the at least a first binding agent comprises 2, 3, 4, 5, 6 or more binders. 16. The method of claim 1, wherein the second binding agent comprises 2, 3, 4, 5, 6 or more binders. 17. The method of claim 1, wherein the powdered metal comprises an alloy comprising copper, cobalt, and nickel.
Ducros Pierre (Pouilly-les-Nonains FRX) Desevaux Michel J. (Bourges FRX) De Veth Chris G. (Saint Rmy Gust BEX), Ammunition, in particular of the telescoped type.
Husseini,Nabil; Byron,David E., Base for a cartridge casing body for an ammunition article, a cartridge casing body and an ammunition article having such base, wherein the base is made from plastic, ceramic, or a composite material.
Cook Todd D. ; Danner Dale R. ; Dwyer ; Jr. John M. ; Lopata Frances G. ; Ronkainen Diane ; Schluckebier David K. ; Shanks Robert B. ; Stone Jeffrey W. ; Wildman Spencer D., Electric primer.
Busky, Randall T.; Botcher, Tod R.; Sandstrom, Joel L.; Erickson, Jack A., Nontoxic, noncorrosive phosphorus-based primer compositions and an ordnance element including the same.
Andersson Norman H. (Alta Loma CA) Mack S. D. (Mira Loma CA) LaRocca ; deceased Edward W. (late of Placentia CA by Mary C. LaRocca ; executor), Pre-stressed cartridge case.
Hafner, Matthew T.; Balangue, Ruben; Clark, Danny D.; Westbrook, III, John William, Propellant compositions including stabilized red phosphorus, a method of forming same, and an ordnance element including the same.
Leshner Ervin (Cherry Hill NJ) Donnard Reed E. (Huntingdon Valley PA), Stress modulator ring and microgrooved base for an ammunition cartridge having a plastic case.
Foren, Wayne S.; Jackson, David; Smith, Gary, Subsonic ammunication articles having a rigid outer casing or rigid inner core and methods for making the same.
Amick,Darryl D., System and method for processing ferrotungsten and other tungsten alloys, articles formed therefrom and methods for detecting the same.
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