CN114700454B - New energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process - Google Patents

New energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process Download PDF

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Publication number
CN114700454B
CN114700454B CN202210359331.9A CN202210359331A CN114700454B CN 114700454 B CN114700454 B CN 114700454B CN 202210359331 A CN202210359331 A CN 202210359331A CN 114700454 B CN114700454 B CN 114700454B
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aluminum alloy
forging
alloy movable
scroll
vortex plate
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CN114700454A (en
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孙伟
邵杰
庄晓伟
汤敏俊
王玲
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Jiangsu Longcheng Precision Forging Group Co ltd
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Jiangsu Longcheng Precision Forging Group Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002Hybrid process, e.g. forging following casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/022Open die forging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K7/00Making railway appurtenances; Making vehicle parts
    • B21K7/12Making railway appurtenances; Making vehicle parts parts for locomotives or vehicles, e.g. frames, underframes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention discloses a new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process, which comprises the following steps of: the invention adopts the common open hot die forging to prefabricate the blank, reduces the molding difficulty of the vortex part of the vortex disc and improves the consistency of the product quality; the combined forming method of one-die two-piece hot die forging and pit extrusion is adopted, only one trimming is needed, the manufacturing efficiency of the vortex plate is improved, and the material loss is reduced compared with the common open hot die forging; the process has strong applicability, and is suitable for various aluminum alloy vortex plates with a plurality of pits on the supporting part; the invention has high production efficiency, strong applicability to product structures, difficult generation of forging defects such as folding and the like, does not need to additionally prepare a special back pressure molding die carrier, and reduces the requirements on manufacturing tools.

Description

New energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process
Technical Field
The invention relates to the technical field of aluminum alloy movable vortex plates for air conditioner compressors of new energy automobiles, in particular to a forging and extrusion combined manufacturing process of the aluminum alloy movable vortex plates of the new energy automobiles.
Background
The vortex plate is a disk-shaped special-shaped member in the automobile vortex compressor, and consists of two involute vortex coils which have the same shape and are staggered by 180 degrees relative to each other in angle phase, wherein one of the involute vortex coils is a fixed coil, and is called a static coil, and the other vortex coil is driven by an eccentric shaft, and an axis of the vortex coil is a movable coil. Along with the development needs of high-performance light-weight of new energy automobiles, the materials of a movable disc and a fixed disc in the automobile scroll compressor are gradually light-weight aluminum alloy materials, and the structure is also more and more complicated.
In the prior art, the aluminum alloy vortex plate is generally manufactured by adopting technologies such as die casting, forging and the like, and then is subjected to high-precision cutting processing. However, the scroll manufactured by the die casting process has congenital defects that the metal structure is loose, air holes or sand holes are easy to generate, and the scroll can only be applied to scenes with partial low performance requirements; for the scene with high performance requirement, a forging forming process is generally adopted for blank making, however, because the aluminum alloy movable vortex plate for the new energy automobile has a complex structure, the aluminum alloy movable vortex plate is generally provided with a vortex part and a supporting part, wherein the supporting part is provided with a plurality of pits with different depths, the common open hot die forging cannot be used for manufacturing products which have no folding defects and have completely qualified size and shape, and only the back pressure forging forming process can be adopted for closed forging. The back pressure forging forming needs to additionally design and manufacture a special blocking forming die carrier, has higher requirements on technological parameter control, and has lower production efficiency compared with the common open hot forging process.
Disclosure of Invention
The invention aims to provide a novel energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process, which aims to solve the problems that in the prior art, the aluminum alloy movable vortex plate for the novel energy automobile is complex in structure and is generally provided with a vortex part and a supporting part, wherein the supporting part is provided with a plurality of pits with different depths, a common open hot die forging cannot manufacture products which have no folding defects and have completely qualified size and shape, and only a back pressure forging forming process can be adopted for carrying out block forging. And the back pressure forging forming is adopted, a special blocking forming die carrier is required to be additionally designed and manufactured, the requirement on process parameter control is high, and the production efficiency is lower than that of the common open hot die forging process.
In order to achieve the above purpose, the present invention provides the following technical solutions: the aluminum alloy movable vortex plate forging and extrusion combined manufacturing process of the new energy automobile comprises the following steps of:
s1, blanking: cutting off an aluminum alloy round bar with a certain diameter by adopting aluminum alloy blanking equipment, and performing subsequent aluminum alloy hot forging and pre-forging treatment;
s2, heating: heating the round aluminum alloy bar obtained by blanking to a forging temperature range;
s3, open hot die forging: carrying out open hot die forging by adopting a hot die forging machine and cutting off a flash prefabricated blank to obtain an aluminum alloy movable scroll initial blank, wherein the aluminum alloy movable scroll initial blank comprises 2 scroll parts and 1 support part, and two sides of the support part are respectively integrally connected with the two scroll parts;
s4, surface cleaning: removing oxides and impurities on the surface of an initial blank of the aluminum alloy movable vortex plate by adopting a sand blasting or shot blasting mode;
s5, blank segmentation: dividing the initial blank of the aluminum alloy movable scroll subjected to S4 treatment into two intermediate blanks of the aluminum alloy movable scroll by a sawing machine, wherein the intermediate blanks of the aluminum alloy movable scroll comprise 1 scroll part and 1 support part, one side of the support part is integrally connected with the scroll part, and the other side of the support part is a plane;
s6, pit extrusion molding: respectively adopting extrusion mode to form a back pit on the middle blank of the aluminum alloy movable vortex plate in the step S5 to obtain two aluminum alloy movable vortex plate final forging blanks, wherein each aluminum alloy movable vortex plate final forging blank comprises 1 vortex part and 1 supporting part, one side of each supporting part is integrally connected with each vortex part, and the other side of each supporting part comprises a plurality of pits obtained by extrusion molding;
s7, post-forging treatment and cutting processing: and (3) carrying out post-forging treatment and partial surface cutting processing on the aluminum alloy movable scroll final forging blank in the step (S6) to obtain a new energy automobile aluminum alloy movable scroll finished part with qualified shape and size precision and performance, wherein the new energy automobile aluminum alloy movable scroll finished part comprises 1 scroll part and 1 support part, one side of the support part is integrally connected with the scroll part, and the other side of the support part comprises a plurality of pits obtained by extrusion molding.
Preferably, the blanking device in S1 uses a shearing machine or a sawing machine for blanking, the proportion of the blanking weight of the aluminum alloy bar stock to the weight of the aluminum alloy movable scroll finished product part is two times or more, and the proportion of the blanking length to the height of the aluminum alloy movable scroll finished product part is two times or more.
Preferably, graphite is used for coating graphite lubricant on the surface of the heated raw material bar during the open hot die forging in the step S3, and the raw material bar is molded at one step under the action of pressure, wherein the forging temperature is 450-530 ℃.
Preferably, the extrusion in S6 is selected from cold extrusion or warm extrusion according to the shape, number and depth characteristics of the pits.
Preferably, the pre-forging treatment in S1 includes one or more steps of removing surface defects of the raw material, increasing surface roughness of the raw material by sand blasting and shot blasting, and precoating the surface with a lubricant.
Preferably, the post-forging treatment in S7 includes one or more steps of surface cleaning, solid solution aging, and cleaning, so as to obtain a blank to be cut with good surface quality and mechanical properties.
Preferably, the numerical values between the thickness d1 of the initial blank supporting portion of the aluminum alloy movable scroll in S3 and the thickness d2 of the intermediate blank supporting portion of the aluminum alloy movable scroll in S5 and the thickness d3 of the saw blade of the sawing machine satisfy the mathematical relationship: d1 =2d2+d3.
Preferably, the forging temperature range is 460 ℃ to 480 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the common open hot die forging to prefabricate the blank, reduces the molding difficulty of the vortex part of the vortex disc, and improves the consistency of the product quality; the combined forming method of one-die two-piece hot die forging and pit extrusion is adopted, only one trimming is needed, the manufacturing efficiency of the vortex plate is improved, and the material loss is reduced compared with the common open hot die forging; the process has strong applicability, and is suitable for various aluminum alloy vortex plates with a plurality of pits on the supporting part; the production efficiency is high, the applicability to the product structure is strong, forging defects such as folding and the like are not easy to generate, a special back pressure molding die carrier is not required to be additionally prepared, and the requirement on manufacturing tools is reduced.
Drawings
FIG. 1 is a schematic structural view of an initial blank of an aluminum alloy orbiting scroll in S3 of the present invention;
FIG. 2 is a schematic structural view of the initial blank of the aluminum alloy orbiting scroll in S3 according to another view angle of the present invention;
FIG. 3 is a schematic cross-sectional view of the initial blank of the aluminum alloy orbiting scroll in S3 of the present invention;
FIG. 4 is a schematic structural view of the intermediate blank of the aluminum alloy orbiting scroll in S5 of the present invention;
FIG. 5 is a schematic structural view of the aluminum alloy orbiting scroll intermediate blank in S5 according to another aspect of the present invention;
FIG. 6 is a schematic structural view of the final forging blank of the aluminum alloy orbiting scroll in S6 of the present invention;
fig. 7 is a schematic structural view of another view of the final forging blank of the aluminum alloy orbiting scroll in S6 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, the present invention provides a technical solution: the aluminum alloy movable vortex plate forging and extrusion combined manufacturing process of the new energy automobile comprises the following steps of:
s1, blanking: cutting off an aluminum alloy round bar with a certain diameter by adopting aluminum alloy blanking equipment for subsequent aluminum alloy hot forging, blanking by adopting a shearing machine or a sawing machine by adopting the blanking equipment, wherein the proportion of the blanking weight of the aluminum alloy bar to the weight of the aluminum alloy movable vortex plate finished product part is two times or more, the proportion of the blanking length to the height of the aluminum alloy movable vortex plate finished product part is two times or more, performing forging pretreatment, including removing surface defects of raw materials, adopting a sand blasting and shot blasting mode to increase the surface roughness of the raw materials, and precoating the surface with a lubricant for one or more steps of reducing the subsequent hot forging forming difficulty;
s2, heating: heating the round aluminum alloy bar obtained by blanking to a forging temperature range;
s3, open hot die forging: the method comprises the steps that an open hot die forging machine is adopted to carry out open hot die forging, flash prefabricated blanks are cut off, an aluminum alloy movable scroll initial blank is obtained, the aluminum alloy movable scroll initial blank comprises 2 scroll parts and 1 support part, two sides of the support part are respectively integrally connected with the two scroll parts, graphite is adopted to coat graphite lubricant on the surface of a heated raw material bar during the open hot die forging, the surface is molded at one step under the action of pressure, the forging temperature range is 450-530 ℃, preferably 460-480 ℃, the thickness d1 of the aluminum alloy movable scroll initial blank support part, and numerical values between the thickness d2 of the aluminum alloy movable scroll intermediate blank support part in S5 and the thickness d3 of a saw blade of a sawing machine should meet mathematical relations: d1 =2d2+d3;
s4, surface cleaning: removing oxides and impurities on the surface of an initial blank of the aluminum alloy movable vortex plate by adopting a sand blasting or shot blasting mode;
s5, blank segmentation: dividing the initial blank of the aluminum alloy movable scroll subjected to S4 treatment into two intermediate blanks of the aluminum alloy movable scroll by a sawing machine, wherein the intermediate blanks of the aluminum alloy movable scroll comprise 1 scroll part and 1 support part, one side of the support part is integrally connected with the scroll part, and the other side of the support part is a plane;
s6, pit extrusion molding: respectively adopting an extrusion mode to form a pit at the back of the middle blank of the aluminum alloy movable vortex plate in the S5, and selecting cold extrusion or warm extrusion for extrusion forming according to the shape, the number and the depth characteristics of the pits to obtain two aluminum alloy movable vortex plate final forging blanks, wherein each aluminum alloy movable vortex plate final forging blank comprises 1 vortex part and 1 supporting part, one side of each supporting part is integrally connected with each vortex part, and the other side of each supporting part comprises a plurality of pits obtained by extrusion forming;
s7, post-forging treatment and cutting processing: carrying out post-forging treatment and local surface cutting processing on the aluminum alloy movable vortex plate final forging blank in the step S6, wherein the post-forging treatment comprises one or more steps of surface cleaning, solid solution aging and cleaning so as to obtain a blank to be cut with good surface quality and mechanical property, and obtaining a new energy automobile aluminum alloy movable vortex plate finished part with qualified shape and size precision and performance; the aluminum alloy movable vortex plate finished product part of the new energy automobile is characterized by comprising 1 vortex part and 1 supporting part, wherein one side of the supporting part is integrally connected with the vortex part, and the other side of the supporting part comprises a plurality of pits obtained by extrusion molding.
The invention adopts the common open hot die forging to prefabricate the blank, reduces the molding difficulty of the vortex part of the vortex disc, and improves the consistency of the product quality; the combined forming method of one-die two-piece hot die forging and pit extrusion is adopted, only one trimming is needed, the manufacturing efficiency of the vortex plate is improved, and the material loss is reduced compared with the common open hot die forging; the process has strong applicability, and is suitable for various aluminum alloy vortex plates with a plurality of pits on the supporting part; the production efficiency is high, the applicability to the product structure is strong, forging defects such as folding and the like are not easy to generate, a special back pressure molding die carrier is not required to be additionally prepared, and the requirement on manufacturing tools is reduced.
Example 2
In which the same or corresponding parts as those in embodiment 1 are denoted by the corresponding reference numerals as those in embodiment 1, only the points of distinction from embodiment 1 will be described below for the sake of brevity. This embodiment 2 is different from embodiment 1 in that:
s1, blanking: selecting 4032 aluminum alloy rod materials according to a design drawing, blanking 920g, calculating the diameter of raw materials, and sawing and blanking on a sawing machine by using aluminum alloy blanking equipment to obtain round aluminum alloy bars with a certain length;
s2, heating: putting the round aluminum alloy bar into a resistance furnace for heating to 475-490 ℃;
s3, open hot die forging: transferring the heated aluminum alloy round bar material into a die, and hot forging, forming and trimming by adopting an open hot die forging press to obtain an initial blank of the aluminum alloy movable vortex disc, wherein the shape of the initial blank is shown in the figures 1-3;
s4, surface cleaning: adopting a crawler-type shot blasting machine to clean the surface of an initial blank of the aluminum alloy movable vortex disc, and removing surface oxide skin and impurities;
s5, blank segmentation: dividing the initial blank of the aluminum alloy movable scroll subjected to surface cleaning by a sawing machine to obtain two intermediate blanks of the aluminum alloy movable scroll shown in fig. 4 and fig. 5;
s6, pit extrusion molding: placing the intermediate blank of the aluminum alloy movable scroll into a die and performing cold extrusion molding under a press to obtain a final forging blank of the aluminum alloy movable scroll shown in fig. 6 and 7;
s7, post-forging treatment and cutting processing: and carrying out solution aging treatment and surface cutting processing according to the mechanical property requirement and the surface quality requirement of the product design to obtain the formed aluminum alloy movable vortex plate of the new energy automobile, wherein the diameter of the formed aluminum alloy movable vortex plate of the new energy automobile is 94mm, the height of the formed aluminum alloy movable vortex plate is 60mm, and the weight of the formed aluminum alloy movable vortex plate of the new energy automobile is 450g.
Example 3
In which the same or corresponding parts as those in embodiment 1 are denoted by the corresponding reference numerals as those in embodiment 1, only the points of distinction from embodiment 1 will be described below for the sake of brevity. This embodiment 3 is different from embodiment 1 in that:
s1, blanking: selecting 4032 aluminum alloy rod materials according to a design drawing, blanking 900g, calculating the diameter of raw materials, and sawing and blanking on a sawing machine by using aluminum alloy blanking equipment to obtain round aluminum alloy bars with a certain length;
s2, heating: putting the round aluminum alloy bar into a resistance furnace for heating to 480 ℃;
s3, open hot die forging: transferring the heated aluminum alloy round bar material into a die, and hot forging, forming and trimming by adopting an open hot die forging press to obtain an initial blank of the aluminum alloy movable vortex disc, wherein the shape of the initial blank is shown in the figures 1-3;
s4, surface cleaning: adopting a crawler-type shot blasting machine to clean the surface of an initial blank of the aluminum alloy movable vortex disc, and removing surface oxide skin and impurities;
s5, blank segmentation: dividing the initial blank of the aluminum alloy movable scroll subjected to surface cleaning by a sawing machine to obtain two intermediate blanks of the aluminum alloy movable scroll shown in fig. 4 and fig. 5;
s6, pit extrusion molding: placing the intermediate blank of the aluminum alloy movable scroll into a die and performing cold extrusion molding under a press to obtain a final forging blank of the aluminum alloy movable scroll shown in fig. 6 and 7;
s7, post-forging treatment and cutting processing: and carrying out solution aging treatment and surface cutting processing according to the mechanical property requirement and the surface quality requirement of the product design to obtain the formed aluminum alloy movable vortex plate of the new energy automobile.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The aluminum alloy movable vortex plate forging and extrusion combined manufacturing process of the new energy automobile comprises the following steps of:
s1, blanking: cutting off an aluminum alloy round bar with a certain diameter by adopting aluminum alloy blanking equipment, and performing subsequent aluminum alloy hot forging and pre-forging treatment;
s2, heating: heating the round aluminum alloy bar obtained by blanking to a forging temperature range;
s3, open hot die forging: carrying out open hot die forging by adopting a hot die forging machine and cutting off a flash prefabricated blank to obtain an aluminum alloy movable scroll initial blank, wherein the aluminum alloy movable scroll initial blank comprises 2 scroll parts and 1 support part, and two sides of the support part are respectively integrally connected with the two scroll parts;
s4, surface cleaning: removing oxides and impurities on the surface of an initial blank of the aluminum alloy movable vortex plate by adopting a sand blasting or shot blasting mode;
s5, blank segmentation: dividing the initial blank of the aluminum alloy movable scroll subjected to S4 treatment into two intermediate blanks of the aluminum alloy movable scroll by a sawing machine, wherein the intermediate blanks of the aluminum alloy movable scroll comprise 1 scroll part and 1 support part, one side of the support part is integrally connected with the scroll part, and the other side of the support part is a plane;
s6, pit extrusion molding: respectively adopting extrusion mode to form a back pit on the middle blank of the aluminum alloy movable vortex plate in the step S5 to obtain two aluminum alloy movable vortex plate final forging blanks, wherein each aluminum alloy movable vortex plate final forging blank comprises 1 vortex part and 1 supporting part, one side of each supporting part is integrally connected with each vortex part, and the other side of each supporting part comprises a plurality of pits obtained by extrusion molding;
s7, post-forging treatment and cutting processing: and (3) carrying out post-forging treatment and partial surface cutting processing on the aluminum alloy movable scroll final forging blank in the step (S6) to obtain a new energy automobile aluminum alloy movable scroll finished part with qualified shape and size precision and performance, wherein the new energy automobile aluminum alloy movable scroll finished part comprises 1 scroll part and 1 support part, one side of the support part is integrally connected with the scroll part, and the other side of the support part comprises a plurality of pits obtained by extrusion molding.
2. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process is characterized in that: and S1, blanking by using a shearing machine or a sawing machine, wherein the proportion of the blanking weight of the aluminum alloy bar stock to the weight of the aluminum alloy movable vortex plate finished product part is two times or more, and the proportion of the blanking length to the height of the aluminum alloy movable vortex plate finished product part is two times or more.
3. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process is characterized in that: and in the S3, graphite is adopted to coat graphite lubricant on the surface of the heated raw material bar during open hot die forging, and the raw material bar is molded at one step under the action of pressure, wherein the forging temperature is 450-530 ℃.
4. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process is characterized in that: and (3) the extrusion molding in the step S6 is performed by selecting cold extrusion or warm extrusion molding according to the shape, the number and the depth characteristics of the pits.
5. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process is characterized in that: the pre-forging treatment in the step S1 comprises one or more steps of removing surface defects of raw materials, increasing the surface roughness of the raw materials by adopting a sand blasting and shot blasting mode, and precoating the surface with a lubricant.
6. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process is characterized in that: the post-forging treatment in S7 comprises one or more steps of surface cleaning, solid solution aging and cleaning so as to obtain a blank to be cut with good surface quality and mechanical properties.
7. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process is characterized in that: the numerical values between the thickness d1 of the initial blank supporting part of the aluminum alloy movable scroll in the S3 and the thickness d2 of the intermediate blank supporting part of the aluminum alloy movable scroll in the S5 and the thickness d3 of the sawing machine saw blade should satisfy the mathematical relation: d1 =2d2+d3.
8. The new energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process according to claim 3, which is characterized in that: the forging temperature range is 460-480 ℃.
CN202210359331.9A 2022-04-07 2022-04-07 New energy automobile aluminum alloy movable vortex plate forging and extrusion combined manufacturing process Active CN114700454B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103028904A (en) * 2012-11-23 2013-04-10 湖州德卡斯电子有限公司 Preparation method of brake boosting system device and product thereof
CN107186159A (en) * 2017-06-20 2017-09-22 江苏威鹰机械有限公司 The quiet disk manufacturing process of oil-free vacuum pump of eddy type aluminium alloy
CN109590680A (en) * 2018-11-19 2019-04-09 江苏创精锻有限公司 A kind of processing technology of aluminium alloy scroll plate
CN110125318A (en) * 2019-06-12 2019-08-16 昆山众诚精密锻造有限公司 A kind of forging technology of new-energy automobile monoblock type screw compressor scroll plate
CN113020920A (en) * 2021-04-06 2021-06-25 安徽海立汽车零部件有限公司 Machining process for movable fixed disc of scroll compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103028904A (en) * 2012-11-23 2013-04-10 湖州德卡斯电子有限公司 Preparation method of brake boosting system device and product thereof
CN107186159A (en) * 2017-06-20 2017-09-22 江苏威鹰机械有限公司 The quiet disk manufacturing process of oil-free vacuum pump of eddy type aluminium alloy
CN109590680A (en) * 2018-11-19 2019-04-09 江苏创精锻有限公司 A kind of processing technology of aluminium alloy scroll plate
CN110125318A (en) * 2019-06-12 2019-08-16 昆山众诚精密锻造有限公司 A kind of forging technology of new-energy automobile monoblock type screw compressor scroll plate
CN113020920A (en) * 2021-04-06 2021-06-25 安徽海立汽车零部件有限公司 Machining process for movable fixed disc of scroll compressor

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