Material additive manufacturing system and material additive manufacturing method
A technology of additive manufacturing and printing materials, applied in the field of additive manufacturing, which can solve the problems of holes, looseness, mechanical, electrical, mechanical gaps, cracks and other problems in formed parts
Active Publication Date: 2019-07-09
GENERAL ELECTRIC CO
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Problems solved by technology
However, the working principle of layer-by-layer cumulative forming during the forming process leads to almost inevitable defects such as holes and porosity inside the formed part, and microcracks are prone to appear inside the formed part for most materials.
Even if the parts with the best formability are used to form parts and post-processed by hot isostatic pressing and heat treatment, the mechanical properties such as fatigue properties still cannot reach the standard of forgings
[0003] In particular, if the additive manufacturing technology is applied to the forming of metal parts, there will inevitably be certain defects in the forming process, such as pores, cracks, shrinkage cavities, etc.
These defects will lead to a large gap between the mechanical, electrical and mechanical properties of the final formed parts and the requirements of the real product.
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[0013] Unless otherwise defined, the technical terms or scientific terms used in the specification and claims shall have the ordinary meanings understood by those skilled in the technical field to which the present invention belongs. "First" or "second" and similar words used in the specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. "A" or "one" and similar words do not indicate a limitation of number, but mean that there is at least one. Approximate language used herein may be used in quantitative terms, indicating that certain variations in quantities are permissible without changing essential function. Accordingly, values modified by language such as "about", "approximately" and the like are not limited to the exact value itself. Likewise, words like "a" or "one" do not denote a limitation in quantity, but indicate that there is at least one. Words such as "comprises" or "comprises" and simi...
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The invention provides a material additive manufacturing system. The material additive manufacturing system is characterized by comprising an energy source device and a forging device. The energy source device is used for providing a first energy beam and a second energy beam. The forging device comprises a forging head. The first energy beam and a base can move relatively, and the first energy beam is used for melting at least part of a printing machine added to the surface of the base to form a cladding layer. The forging head is used for forging the cladding layer in the forming process ofthe cladding layer. The second energy beam is used for heating a forging area of the cladding layer.
Description
technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to an additive manufacturing system and an additive manufacturing method. Background technique [0002] Additive manufacturing technology is an advanced manufacturing technology that can directly form parts with complex structures through layer-by-layer superimposition of materials. However, the working principle of layer-by-layer cumulative forming during the forming process leads to almost inevitable defects such as holes and porosity inside the formed part, and microcracks are prone to appear inside the formed part for most materials. Even if the parts with the best formability are used to form parts and post-processed by hot isostatic pressing and heat treatment, the mechanical properties such as fatigue properties still cannot meet the standards of forgings. [0003] In particular, if the additive manufacturing technology is applied to the forming of metal parts...
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IPC IPC(8): B22F3/105B22F3/17
CPCB22F3/17B33Y30/00B22F10/00B22F10/36B22F12/46B22F12/53B22F12/33B22F12/45B22F10/25B22F10/50B22F2999/00B33Y40/00B22F3/115B22F3/16B33Y10/00Y02P10/25B22F12/10B22F12/63B22F3/06
Inventor 钟大龙魏斌武颖娜吴勇翟梓融昌海L·T·拉希
Owner GENERAL ELECTRIC CO