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Spray forming

About: Spray forming is a research topic. Over the lifetime, 1153 publications have been published within this topic receiving 12869 citations. The topic is also known as: spray casting & spray deposition.


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Patent
21 Nov 2012
TL;DR: In this paper, an atomizer for spray forming of high-melting-point alloy deposit billets is described, and a thermal insulating crucible and an atomizing cone are fixedly connected through an atomization plant.
Abstract: The invention discloses an atomizer for spray forming of high-melting-point alloy deposit billets, and relates to an atomizer. The invention solves the problem that deposit billets prepared by the atomizer have large grains and low compactness, and cannot be subjected to spray forming to form the high-melting-point alloy deposit billets. A thermal insulating crucible and an atomizing cone are fixedly connected through an atomization plant; the upper part of an upper atomizer is provided with a 35-degree inner taper hole, while the lower part is provided with a step hole communicated with the inner taper hole; the outer wall of the upper atomizer is provided with first external threads; the center of a lower atomizer is provided with first internal threads, a first cylindrical hole and a second cylindrical hole in turn from top to bottom; the side wall of the first cylindrical hole is provided with a second internal threaded hole; the first external threads are screwed in the first internal threads; a cavity is formed between the first cylindrical hole and the outer wall of the step hole; a gap is reserved between the second cylindrical hole and the outer wall of the step hole; andboth the upper atomizer and the lower atomizer are made of graphite. The atomizer is suitable for preparing the high-melting-point alloy deposit billets through spray forming.
Journal ArticleDOI
TL;DR: In this paper, the microstructure of CuCr25 alloy prepared by spray forming was studied, and the size of chromium particles was 3-10μm, after hot forging and hot isostatic pressing.
Abstract: The CuCr25 alloys were prepared by spray forming technology, and effect of process parameters on the deposit was studied. The microstructure of CuCr25 alloy prepared by spray forming was studied, and the size of chromium particles was 3-10μm. It is fond that spray-deposited CuCr25 alloys were hot forged and hot isostatically pressed to full densification,and the size of chromium particles was increased little after being hold at 1070°C for 60mins. Conclusions were drawn from the researching results that spray forming was an ideal method to prepare CuCr25 alloys with fine chromium precipitates and homogeneous dispersion. After hot forging and hot isostatic pressing, the size of chromium particles was increased to 10-15μm. the density of the CuCr25 alloy could be 99%.
Patent
23 Feb 1999
TL;DR: In this paper, a sputtering target is manufactured by adjusting the ratio of the gas flow volume (Nm3)/molten liquid flow mass (kg) to 5 Nm3/kg or more in the gas atomizing step of the spray forming method using an Al or Al alloy sputtering targets.
Abstract: The sputtering target is manufactured by adjusting the ratio of the gas flow volume (Nm3)/molten liquid flow mass (kg) to 5 Nm3/kg or more in the gas atomizing step of the spray forming method using an Al or Al alloy sputtering target material in which the maximum length of all the inclusions is 20 mum or less.
Patent
14 May 2020
TL;DR: In this article, a method of forming a 3D solid object is described, comprising the steps of cold spraying one or more metallic powder to form a solid three-dimensional item, thermally sintering the item such that a portion of the sprayed powder liquefies and reduces spaces between, and/or non-adhesion of, one of the solid portions of the item; and causing or allowing the portion of sprayed powder that liquefied on heating, to become solid.
Abstract: The invention relates to a method of forming a 3-dimensional solid object, comprising the steps: a) cold spraying one or more metallic powder to form a solid three dimensional item; b) thermally sintering the item such that a portion of the sprayed powder liquefies and reduces spaces between, and/or non-adhesion of, one or more solid portions of the item; and c) causing or allowing the portion of the sprayed powder that liquefied on heating, to become solid.
Patent
23 Dec 2015
TL;DR: In this paper, a method for establishing inclined twin-jet-nozzle scanning spray forming technological parameters is presented, which consists of determining basic technological parameters comprising basic internal technological parameters and basic external technological parameters.
Abstract: The invention discloses a method for establishing inclined twin-jet-nozzle scanning spray forming technological parameters. The method comprises the following steps: (1), determining basic technological parameters comprising basic internal technological parameters and basic external technological parameters; (2), determining the descending speed of a collecting disc; (3), determining the scanning frequency of the internal jet nozzle, namely, f(internal), the scanning frequency of the external jet nozzle, namely, f(external), and the rotational speed (n) of the collecting disc; (4), determining the scanning areas of the internal jet nozzle and the external jet nozzle; (5), determining the inclination angles and the scanning area angles of the internal jet nozzle and the external jet nozzle; (6), determining the diameters of liquid guide pipes of the internal jet nozzle and the external jet nozzle; (7), determining the atomizing gas pressure (p internal) of the internal jet nozzle and the atomizing gas pressure (p external) of the external jet nozzle. According to the method for establishing inclined twin-jet-nozzle scanning spray forming technological parameters, provided by the invention, the problems of establishing steps of multiple technological parameters that are in association relationship and the computing method of the steps through engineering approaches are solved, so that a technological guarantee is provided for spray forming semisolid sedimentation of large-sized blank pieces.

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202310
202216
202117
202037
201933
201826