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406results about How to "Shorten the manufacturing cycle" patented technology

Method and device of disposing holes on carbon fiber composite material and meal material which are overlapped

The invention relates to a method and device of disposing high-quality holes on carbon fiber composite material and meal material which are overlapped, belonging to the field of the mechanical processing and manufacturing technology. The method of disposing high-quality holes on the carbon fiber composite material and the meal material which are overlapped is characterized in that in the process of disposing holes on the carbon fiber composite material and the meal material which are overlapped by a device of disposing holes, such as a polycrystalline diamond (PCD), a coating, a cemented carbide bit and a diamond grinding rod, the rotating speed and the feeding speed of a cutter are automatically changed according to the materials on which holes are to be disposed by the hardware triggering or software numerical-control programming control mode of a feeding position sensor set so that the cutter can be in the optical process parameter state. The device of disposing high-quality holes on the carbon fiber composite material and the meal material which are overlapped is characterized by comprising a body, the cutter the handle of the cutter, an electric main shaft, the feeding position sensor set, a vertical feeding sliding-platform, a main shaft variable-frequency speed-regulating system and a hole disposing device numerical control system. The invention realizes the adaptive continuous processing, obviously improves the quality and the processing efficiency of holes disposed integrally on different overlapped materials and lowers the production cost.
Owner:DALIAN UNIV OF TECH

Integral manufacturing method of S-04/S-08 high-strength stainless steel three-dimensional flow shrouded impeller

The invention provides an integral manufacturing method of an S-04/S-08 high-strength stainless steel three-dimensional flow shrouded impeller. The integral manufacturing method comprises the steps of firstly, establishing an impeller three-dimensional model, and carrying out slicing treatment; determining the forming direction and support adding positions according to structural characteristics of the impeller; setting parameters of a laser selective melting forming processing technology according to characteristics of a high-strength stainless steel material; forming under protection of an inert gas; after forming, cleaning floating powder, removing a base plate through linear cutting, and removing supports; and finally, carrying out follow-up treatment such as surface treatment and thermal treatment on the impeller. According to the integral manufacturing method, complex cutters or fixtures do not need to be designed, materials can be directly added for part manufacturing only through the three-dimensional model of the impeller, the manufacturing cycle is greatly shortened, and the integral manufacturing method is applicable to trial manufacturing and middle and small-batch production in the development stage.
Owner:XIAN SPACE ENGINE CO LTD

Powder metallurgy preparation method for high-strengthening-toughening metal-based composite material

ActiveCN108080644AImproved deformation coordinationAchieve toughnessMetal matrix compositeMetal powder
The invention discloses a powder metallurgy preparation method for a high-strengthening-toughening metal-based composite material and belongs to the field of metal-based composite materials. The method comprises the steps that (1), mixed powder of metal powder and part reinforcing phase is subjected to ball-milling treatment, and ball-milling is stopped before all crystal particles in the metal powder reach ultrafine crystal; (2), the rest reinforcing phase is added to the powder after ball-milling in the step (1), the ball-milling is continued, and the ball-milling is stopped until the reinforcing phase is completely dispersed; (3), after the powder after the ball-milling in the step (2) is treated by powder metallurgy sintering process, then the high-strengthening-toughening metal-basedcomposite material is obtained. According to the powder metallurgy preparation method for the high-strengthening-toughening metal-based composite material, the reinforcing phase is made to be orderlydistributed in a base body by adding the reinforcing phase step by step; crystal particle distribution is adjusted and controlled utilizing the crystal particle refining effect of the reinforcing phase on the base body, a coarse and fine crystal gradient grading structure is formed, thus the strengthening-toughening of materials is realized; and by means of the powder metallurgy preparation methodfor the high-strengthening-toughening metal-based composite material, the process procedure can be simplified, and the strong plasticity of the materials can be improved at the same time.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Preparation method of material increase manufactured nickel-based high-temperature alloy reserved with Laves phase

The invention provides a preparation method of a material increase manufactured nickel-based high-temperature alloy reserved with the Laves phase. GH4169 high-temperature alloy with the Laves phase distributed in a dispersed particle shape is prepared through the preparation method, and compared with industrial forged and cast isometric crystal high-temperature alloy, the high-temperature mechanical properties, especially the high-temperature creep property, the high-temperature endurance life and the like are greatly improved. The preparation method comprises the following steps that firstly, in a processing rood, GH4160 high-temperature alloy powder or wire materials are processed through a high-energy beam heat source to be continuously melted and deposited on a base plate, so that the GH4169 high-temperature alloy reserved with the Laves phase is prepared; secondly, the prepared GH4169 high-temperature alloy reserved with the Laves phase is naturally cooled in the processing room and taken out after the temperature of the GH4169 high-temperature alloy is below 100 DEG C; and thirdly, two stages of heat treatment is conducted on the GH4169 high-temperature alloy which is taken out of the processing and reserved with the Laves phase in sequence, the first stage is completed by conducting heat preservation for 8-24 hours under the condition that the GH4169 high-temperature alloy is heated to the temperature of 700-740 DEG C, then the second stage is completed by cooling the GH4169 high-temperature alloy to the temperature below 600-640 DEG C along with a heat preservation furnace and then conducting heat preservation for eight hours, and finally air cooling is conducted till the indoor temperature is reached, so that the material increase manufactured nickel-based high-temperature alloy reserved with the Laves phase is obtained.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Multi-electrode spiral feeding integral blade wheel inter-blade passage electrolytic machining method

The invention relates to an electrolytic machining method for multi-electrode screw feeding integral impeller flow passages, and belongs to the technical field of electrolytic machining. The method adopts a plurality of tool electrodes which are positioned on the same plane and arranged on an electrolytic machining clamp. In the machining process, a translation stage of a machine tool drives the plurality of the tool electrodes to simultaneously feed linearly along the axes direction of an impeller blank, and a turn table on the translation stage drives the plurality of the tool electrodes to rotate; meanwhile, the impeller blank rotates around the axes of the impeller blank, and the tool electrodes perform electrolytic machining along a motion trail determined by the resultant motion. The electrodes and the impeller blank keep a small clearance; electrolyte flows out at a high speed from gaps of the tool electrodes to continuously take away products of electrolysis; and a plurality of impeller flow passages are machined finally. The number and distribution positions of the tool electrodes can be adjusted to meet machining requirements of integral impellers in different types. Because the plurality of the electrodes are adopted to perform machining simultaneously, the machining efficiency for the integral impeller is greatly improved, and the rotation of the electrodes makes machining allowance more even at the same time.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Module combined refrigerator

The invention provides a module combined refrigerator which comprises a refrigeration system and an electric control system, wherein, the refrigerator is composed of a mainframe room and two or more cold rooms, and the mainframe room and the cold rooms are independent and separated from each other; the cold rooms comprise door bodies and insulation boxes; the mainframe room is internally equipped with two or more refrigeration system interfaces and electric control system interfaces, and the cold rooms are internally equipped with refrigeration system joints and electric control system joints which are correspondingly connected with the refrigeration system interfaces and the electric control system interfaces in the mainframe room; and the mainframe room is equipped with a compressor, a condenser, a capillary tube and a main controller, and the cold rooms are equipped with evaporators. By means of a plurality of combined module units in the mainframe room, the module combined refrigerator can simultaneously meet the combined use requirements for a refrigerating room, a cold room, a soft-freezing room, a wine cabinet and the like, thus meeting the personalized need of customers, reducing development expense, shortening design and production cycle, saving warehousing floor space, and facilitating storage and transportation.
Owner:广东安博基业电器有限公司

Assembly welding tool device and method commonly used for large curved surface end sockets of pressure containers

The invention relates to an assembly welding tool device and method commonly used for large curved surface end sockets of pressure containers. The assembly welding tool device comprises a supporting base plate, a ball screw, grouped rolling bearings, a movement air cylinder, external locating blocks, internal locating blocks, a manual rocker and a graduated scale, wherein the ball screw and an executive component drive most of the external locating blocks and most of the internal locating blocks to move along guide rails of the supporting base plate so as to carry out integrated locating clamping fixation on the curved surface end sockets. According to the assembly welding tool device and method commonly used for the large curved surface end sockets of the pressure containers, in the manufacturing process of the pressure containers, tool locating of the large end sockets can be achieved, welding deformation is prevented, the curved surface end sockets are placed on the assembly welding tool device to be clamped in an assembly locating mode, spot fixation is carried out on weld joints, and then welding operation is carried out on the internal weld joints and the external weld joints; after welding is accomplished, the curved surface end sockets are naturally cooled to have the normal temperature, postwelding is carried out on the curved surface end sockets, stress relieving is carried out on the curved surface end sockets, labor intensity of workers is reduced, the production and manufacturing cycle of products is shortened, and the production cost is reduced.
Owner:哈尔滨市黎明锅炉容器封头有限公司

Rapid manufacturing method for laser remelting scanning carbide dispersion strengthened aluminum alloy

The invention discloses a rapid manufacturing method for laser remelting scanning carbide dispersion strengthened aluminum alloy. The method includes the following steps that (1) a three-dimensional part model is established on a computer, and then the three-dimensional part model is converted to be in an STL format and imported into selective area laser melting forming equipment; (2) aluminum alloy powder and carbide powder are mixed, and then are ball-milled through a ball grinder to be evenly mixed; (3) the ball-milled mixed powder is transferred into the selective area laser melting forming equipment, and the mixed powder is formed according to three-dimensional model data under the protection of inert gases; and (4) a formed part is separated from a substrate by the adoption of the wire-electrode cutting technology, and then is subjected to solution treatment in a muffle furnace, afterwards, quenching is carried out, ceramic bead sand blasting treatment is conducted, and accordingly a finished product is obtained. By the adoption of the method, dispersion strengthening phases can be evenly distributed, and therefore the purposes of obtaining the ceramic phase dispersion strengthened aluminum alloy and improving the high-temperature performance of the aluminum alloy are achieved.
Owner:HUAZHONG UNIV OF SCI & TECH

Electric arc additive manufacturing method for flange part

The invention relates to an electric arc additive manufacturing method for a flange part. The electric arc additive manufacturing method for the flange part comprises the steps that a base plate, a wire, protective gas and equipment are selected; multi-layer and multi-pass accumulation is completed on the base plate from inside to outside along a spiral path through the electric arc additive manufacturing method, so that a bottom surface and a lower neck of the flange part are manufactured; multi-layer and single-pass accumulation is completed on the lower neck along a circular path, so that an upper neck of the flange part is manufactured, and the temperature, current, overlap rate and advancing speed between the layers and the passes are controlled; and redundant portions of the base plate are cut off, solid solution treatment is conducted, the temperature and the constant-temperature time are controlled, and water cooling is conducted. According to the electric arc additive manufacturing method for the flange part, restrains from complex tools, molds and special tools are avoided, only a small degree of finish machining needs to be conducted on a formed blank, the machining procedure is greatly simplified, the manufacturing cycle of products is shortened, and customized individual production can be achieved; and the nondestructive detection quality of the formed flange part is qualified, metal is pure, the structure, the plasticity and the toughness are optimized, the anisotropy phenomenon is improved, and the performance of the flange part can meet the quality and performance requirements for similar forged pieces.
Owner:SUZHOU NUCLEAR POWER RES INST +3

Manufacturing method of lost foam casting foaming mold

The invention provides a manufacturing method of a lost-foam casting foaming mold. The invention is characterized in that the manufacturing method comprises the following steps: firstly, the three-dimensional CAD model of a casting part is manufactured, and a colophony prototype used for casting a blank of the foaming mold is manufactured through a rapid molding machine; secondly, a colophony prototype used for casting an electric spark working electrode is manufactured; thirdly, the inner cavity structure of the blank of the foaming mold is copied by using a colophony prototype with the same size with the casing part and silica gel; fourthly, the blank of the foaming mold is cast by using the composite ceramic shell casting technology; fifthly, the electric spark working electrode is cast by using the colophony prototype for enlarging the size of the casting part by 0.5-1.5 mm and the composite ceramic shell casting technology; and sixthly, the blank of the foaming mold is processed by using the electric spark and assembled to obtain the foaming mold. The invention is suitable for manufacturing the foaming mold with a complex-shaped inner cavity, can rapidly obtain the blank and the electrode of the foaming mold, enables the chrematistics of the arbitrary prototype with a complex shape through the rapid molding technology to be displayed more obvious as for the more complex shape and realizes the rapid manufacture of the lost-foam casting foaming mold.
Owner:SHANDONG UNIV OF TECH

Manufacturing method of superconductor cavity

The invention belongs to the technical field of particle accelerators and particularly relates to manufacture of a radio frequency superconductor cavity. A manufacturing method of the superconductor cavity mainly comprises the following steps: (1) using superconductor materials as raw materials, (2) utilizing CAD software to generate a superconductor cavity model, and adopting layering software to layer the superconductor cavity model, (3) using an atmosphere control system to provide argon for a forming chamber, (4) laying powder of superconductor materials in the step (1) on a forming table of the forming chamber, (5) using a scanning control system to print laser energy onto a powder layer according to the description of a software model of a superconductor cavity slicing layer so as to generate a superconductor material slicing layer entity. The entity is a part of the superconductor cavity. A next slicing layer is processed continually on the first slicing layer entity until the whole superconductor cavity processing process is finished. Finally, mechanical polishing, chemical washing, high-temperature annealing, high-pressure super-pure water washing and super-clean chamber assembly are conducted. The method shortens the development cycle of the superconductor cavity, improves the finished product rate of the development of the superconductor cavity due to the fact that the whole superconductor cavity is free of welding joints, is free of restriction of stamping forming conditions and capable of improving the performance of the superconductor cavity, and reduces product cost due to the fact that surplus superconductor material powder can be used repeatedly.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Resin casting mould rapid manufacturing method

The invention belongs to the technical field of material processing engineering, and in particular relates to a resin casting mould rapid manufacturing method. The resin casting mould rapid manufacturing method is characterized by comprising the following steps of: (1) drawing a three-dimensional CAD (Computer-Aided Design) model of a mould according to a casting process drawing of a casting, and preparing a resin prototype for manufacturing a resin casting mould by a rapid prototyping device; (2) rapidly obtaining a die cavity for manufacturing the resin casting mould through a rolling over of a room temperature vulcanized silicone rubber mould by utilizing the prepared resin prototype; (3) manufacturing the resin mould through a manual paste mode by utilizing the die cavity for manufacturing the resin casting mould; and (4) assembling the resin mould prepared by manual paste on a mouldboard to complete the manufacturing process of the mould. Compared with the prior art, the invention has the advantages of facilitating design and modification to the appearance of the casting, being capable of rapidly obtaining the die cavity for manufacturing the resin casting mould, manufacturing the mould with a few tenths of millimeter of dimensional accuracy and shortening the manufacturing cycle of the mould.
Owner:SHANDONG UNIV OF TECH
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