CN102989949A - Magnesium alloy hydraulic seal forging and forming process - Google Patents

Magnesium alloy hydraulic seal forging and forming process Download PDF

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Publication number
CN102989949A
CN102989949A CN2011102767372A CN201110276737A CN102989949A CN 102989949 A CN102989949 A CN 102989949A CN 2011102767372 A CN2011102767372 A CN 2011102767372A CN 201110276737 A CN201110276737 A CN 201110276737A CN 102989949 A CN102989949 A CN 102989949A
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China
Prior art keywords
magnesium alloy
embryo
mould
shape
heating
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CN2011102767372A
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Chinese (zh)
Inventor
陈文光
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Yu Yu Photoelectric (dongguan) Co Ltd
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Yu Yu Photoelectric (dongguan) Co Ltd
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Priority to CN2011102767372A priority Critical patent/CN102989949A/en
Publication of CN102989949A publication Critical patent/CN102989949A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a magnesium alloy hydraulic seal forging and forming process, which comprises the following steps of: (A) selecting material billets; (B) heating the material billets: heating the material billets to be at 400-500 DEG C through a heating furnace, and breaking a molecular structure so as to form softening solid; (C) heating a die with an established shape: keeping the temperature to be 180-250 DEG C; (D) compression moulding: putting the material billets which are heat to be 400-500 DEG C into the die with the temperature being 180-250 DEG C, using a hydraulic machine to compress the heat material billets to be in a die shape through a certain stamping speed so as to form a prefabricated part; (E) trimming; and (F) finishing. According to the magnesium alloy hydraulic seal forging and forming process, a forming and forging process step is applied on the die with the established shape, so that the final formed prefabricated part forms a fastening part, a stud part, a rib part, a segment difference part, an artist line and other structural shapes on established parts, and the magnesium aluminum alloy shell processed by the process has delicate appearance, high strength, excellent dimensional precision, and favorable radiating performance.

Description

Liquid magnesium alloy means of press seals forging molding process
[technical field]
The present invention relates to the magnadure processing technology, refer in particular to a kind of liquid magnesium alloy means of press seals forging molding process.
[background technology]
Fast development in view of each electronic product, at present the hand-held electric device such as the 3C such as mobile phone, LED lamp socket, notebook computer etc. is more stressed light weight, high strength and is wanted anti electromagnetic wave, good heat dissipation, and 3C Product has the trend that is changed to the light metal shell by plastic casing in the last few years for this reason.In addition along with the new line of environmental consciousness in recent years, as European Union and Japan in recent years in succession legislation implement relevant the recoverys decree of electronics information product (European Union's agreement global electronic products in 2006 need reach the requirement of 75 percent recovery material), and the light metal with high recyclability can be used to replace plastic cement as the optimal material of shell in the middle of becoming 3C Product.
In addition, the material of well-known common metal material is attached most importance to than plastics, but intensity is higher, but the application of the metal materials such as the aluminium in the metal, magnesium, Titanium can be developed light weight, high-intensity goods, wherein again with magnesium alloy because of possess lightweight, thermal diffusivity good, can prevent electromagnetic interference, hardness and plasticity advantages of higher, already in the application of each industry, emerge fast.
As seen the processing of magnesium alloy materials is becoming following very powerful and exceedingly arrogant industry day by day, and it has great application market potentiality.And with regard to existing magnesium alloy process technology, its moulding process includes die casting, the semisolid moulding, forge, punching press and machine cut etc., and domestic magnesium alloy product shoots out moulding mainly with die casting and semisolid greatly at present, but because magnesium is mobile relatively poor, the die casting processing procedure is high for the thinner Workpiece shaping difficulty of thickness, hot tearing easily appears, oxidation, flow liner, undercapacity and the problem points generation that ejects distortion, cause follow-up studying for a second time courses one has flunked, the work utmost point labor intensive of trimming, and then cause cost to improve, special just at present industry condition investigation shows, the development trend of product casing goods is that thickness is more and more thinner, when the thickness of shell is 1mm, utilize the yield of the magnesium alloy product of die cast namely to only have below 50%, so this type of shortcoming of extrusion process is to perplex industry always.
And magnesium alloy punched technology as far as is known can only be to doing local distortion and punching to magnesium alloy plate, the cross section that material deformation can't be become double-screw bolt and rib part or change, therefore being limited in of magnesium alloy punched goods can't form the snapping configuration that possess, and must cooperate the made supporting of plastic material or mould to close or weld other elements and can use.
Moreover, for magnesium alloy forged processing procedure, can allow a large amount of distortion of material production via forging, make the local thinning of material or thickening, but the cross section of formation and modification and in order to the position of moulding double-screw bolt and rib, and the surface quality of forged article is very smooth, is conducive to the follow-up surface treatment of goods, therefore for the procedure for processing of magnesium alloy 3C shell, forging processing procedure is to have the value that actual development is used; For example, the wrought magnesium alloy MD shell that Japan SONY, Hitachi Metals and Tokyo finish forge worker develop cooperatively, the part advantage that has had the cross section of aforementioned plastic rib position and variation, but because this magnesium alloy forged workpiece also has mouldability not enough (joint such as shell must be made of in the mode that side direction locks screw), easily deformable, surface of the work also to produce the problems such as forging defect, obvious with regard to the forging processing procedure of existing magnesium alloy, still have some problems to have to be overcome.
[summary of the invention]
The object of the invention is to overcome defects, a kind of liquid magnesium alloy means of press seals forging molding process is provided.
The object of the present invention is achieved like this: it comprises step:
A), choose the material embryo: described material embryo is the magnesium-aluminium alloy material of predetermined;
B), heating material embryo: will expect that embryo is heated to 400-500 ℃ by heating furnace, and destroy its molecular structure and make and become softening solid;
C), the mould of the set shape of heating: the mould of set shape is heated, make its temperature remain on 180-250 ℃; The mould of described set shape is provided with to form snapping section, segment difference section, left-hand thread section, double-screw bolt section, rib section or art designing line structural feature at least at specified location;
D), compressing: will be heated in the mould that 400-500 ℃ of material material embryo be put in 180-250 ℃, the material embryo that uses hydraulic press will heat with certain drawing velocity is pressed into the shape of mould, the formation prefabricated components;
E) cut edge; The part that prefabricated components are unnecessary is excised;
F) finishing: the prefabricated components after cutting edge are carried out finishing;
Further, in the pressing process flash is controlled at below 5% of prefabricated components cumulative volume described step D);
Further, the drawing velocity of hydraulic press is 10mm/s described step D);
Further, to the processing of painting of the prefabricated components after the described finishing;
Further, described colouring is treated to jet printing type colouring or anode processing colouring.
Than common magnesium alloy molded technique, beneficial effect of the present invention is to impose by the mould with set shape the processing step of one moulding impact forging, thereby form the structural feature such as snapping section, double-screw bolt section, rib section, segment difference section, art designing line at specified location so that finally form prefabricated components, in order to cooperate the requirement of product optionally to impose the processing such as last side cut, finishing, make it can and then obtain outward appearance Xi Cause, have splendid dimensional accuracy, and the hand-held electric device of air casing structure that possesses the good heat radiating characteristic.
[description of drawings]
Below in conjunction with accompanying drawing in detail concrete structure of the present invention is described in detail
Fig. 1 is the structural representation of prefabricated shell in the technological forming process of the present invention
[specific embodiment]
The present invention relates to a kind of liquid magnesium alloy means of press seals forging molding process, it comprises step
A), choose the material embryo; The material embryo is the magnesium-aluminium alloy material of predetermined;
B), heating material embryo: will expect that embryo is heated to 400-500 ℃ by heating furnace, and destroy its molecular structure and make and become softening solid;
C), the mould of the set shape of heating: the mould of set shape is heated, make its temperature remain on 180-250 ℃; The mould of described set shape is provided with to form the structural feature such as snapping section, segment difference section, left-hand thread section, double-screw bolt section, rib section or art designing line at least at specified location;
D), compressing: will be heated in the mould that 400-500 ℃ of material material embryo be put in 180-250 ℃, the material embryo that uses hydraulic press will heat with certain drawing velocity is pressed into the shape of mould, the formation prefabricated components;
E) cut edge; The part that prefabricated components are unnecessary is excised;
F) finishing: the prefabricated components after cutting edge are carried out finishing;
Above-mentioned steps D) in the pressing process flash is controlled at below 5% of prefabricated components cumulative volume in; The drawing velocity of hydraulic press is 10mm/s; In addition, can be further to the processing of painting of the prefabricated components after the finishing, for example: jet printing type colouring or anode are processed colouring.
Referring to shown in Figure 1, in a kind of preparation of magnadure shell, concrete steps are as follows:
A), choose the material embryo; The material embryo is magnesium-aluminium alloy material, calculates the long-pending size of required material idiosome according to shape and the size of prefabricated shell 10.B), heating material embryo: will expect that embryo is heated to 450 ℃ by heating furnace, and destroy its molecular structure and make and become softening solid.C), the mould of the set shape of heating: the mould of set shape is heated, make its temperature remain on 220 ℃; The mould of this set shape is provided with to form the structural feature such as snapping section 11, segment difference section 14, double-screw bolt section 12, rib section 13, art designing line 15 at least at specified location.D), compressing: as will to be heated in the mould that 450 ℃ of material material embryos are put in 220 ℃, the material embryo that uses hydraulic press will heat with the drawing velocity of 10mm/s is pressed into the shape of mould, form prefabricated shell 10, just have the structures such as snapping section 11, segment difference section 14, double-screw bolt section 12, rib section 13, art designing line 15 on the prefabricated shell 10; In the pressing process flash is controlled at below 5% of prefabricated shell 10 cumulative volumes.E) cut edge; With D) unnecessary part is carried out the cutting edge excision on the prefabricated shell 10 that obtains in the step.F) finishing: the prefabricated shell 10 after cutting edge is carried out finishing process; Further finishing can be processed that rear prefabricated shell is painted etc.
In sum, the present invention is by imposing the processing step of one moulding impact forging by the mould with set shape, thereby form snapping section so that finally form prefabricated components at specified location, double-screw bolt section, rib section, the segment difference section, the structural feature such as art designing line, in order to cooperate the requirement of product optionally to impose last side cut, the processing such as finishing, make it can and then obtain outward appearance Xi Cause, has splendid dimensional accuracy, possesses the good heat radiating characteristic, intensity high-magnesium aluminum alloy shell, the hot tearing of having avoided conventional enclosure easily to occur, oxidation, flow liner, undercapacity and the problem that ejects distortion.

Claims (5)

1. liquid magnesium alloy means of press seals forging molding process is characterized in that it comprises step:
A), choose the material embryo: described material embryo is the magnesium-aluminium alloy material of predetermined;
B), heating material embryo: will expect that embryo is heated to 400-500 ℃ by heating furnace, and destroy its molecular structure and make and become softening solid;
C), the mould of the set shape of heating: the mould of set shape is heated, make its temperature remain on 180-250 ℃; The mould of described set shape is provided with to form the structural feature of snapping section, segment difference section, left-hand thread section, double-screw bolt section, rib section or art designing line at least at specified location;
D), compressing: will be heated in the mould that 400-500 ℃ of material material embryo be put in 180-250 ℃, the material embryo that uses hydraulic press will heat with certain drawing velocity is pressed into the shape of mould, the formation prefabricated components;
E) cut edge; The part that prefabricated components are unnecessary is excised;
F) finishing: the prefabricated components after cutting edge are carried out finishing.
2. liquid magnesium alloy means of press seals forging molding process according to claim 1 is characterized in that: in the pressing process flash is controlled at below 5% of prefabricated components cumulative volume described step D).
3. liquid magnesium alloy means of press seals forging molding process according to claim 1 is characterized in that: the drawing velocity of hydraulic press is 10mm/s described step D).
4. liquid magnesium alloy means of press seals forging molding process according to claim 1 is characterized in that: to the processing of painting of the prefabricated components after the described finishing.
5. liquid magnesium alloy means of press seals forging molding process according to claim 4 is characterized in that: described colouring is treated to the jet printing type colouring or anode is processed colouring.
CN2011102767372A 2011-09-16 2011-09-16 Magnesium alloy hydraulic seal forging and forming process Pending CN102989949A (en)

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Application Number Priority Date Filing Date Title
CN2011102767372A CN102989949A (en) 2011-09-16 2011-09-16 Magnesium alloy hydraulic seal forging and forming process

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104259743A (en) * 2014-07-24 2015-01-07 江苏利普机械有限公司 Forging method of alloy steel lock shell forge piece

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002361352A (en) * 2001-06-04 2002-12-17 Koko Tanatsu Kogyo Kofun Yugenkoshi Forming method for magnesium alloy product
CN2805975Y (en) * 2005-07-27 2006-08-16 中国科学院金属研究所 Magnesium alloy thin-wall parts hot-impact forging forming die
CN1824425A (en) * 2005-02-21 2006-08-30 徐名钧 Processing method of magnesium alloy product and its manufacturing process
CN1861288A (en) * 2005-05-10 2006-11-15 徐名钧 Procedure for processing aluminium alloy products
JP2007007694A (en) * 2005-06-30 2007-01-18 Mingjun Xu Method for working magnesium alloy and producing process therefor
CN200997060Y (en) * 2006-12-19 2007-12-26 锦通科技金属有限公司 Part machining device
CN201455157U (en) * 2009-07-17 2010-05-12 昆山美和机械有限公司 Prefabricated structure of magnesium alloy enclosure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002361352A (en) * 2001-06-04 2002-12-17 Koko Tanatsu Kogyo Kofun Yugenkoshi Forming method for magnesium alloy product
CN1824425A (en) * 2005-02-21 2006-08-30 徐名钧 Processing method of magnesium alloy product and its manufacturing process
CN1861288A (en) * 2005-05-10 2006-11-15 徐名钧 Procedure for processing aluminium alloy products
JP2007007694A (en) * 2005-06-30 2007-01-18 Mingjun Xu Method for working magnesium alloy and producing process therefor
CN2805975Y (en) * 2005-07-27 2006-08-16 中国科学院金属研究所 Magnesium alloy thin-wall parts hot-impact forging forming die
CN200997060Y (en) * 2006-12-19 2007-12-26 锦通科技金属有限公司 Part machining device
CN201455157U (en) * 2009-07-17 2010-05-12 昆山美和机械有限公司 Prefabricated structure of magnesium alloy enclosure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104259743A (en) * 2014-07-24 2015-01-07 江苏利普机械有限公司 Forging method of alloy steel lock shell forge piece

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Address after: 523007 Guangdong province Dongguan city Changan town Xiabian on Long Road No. 53

Applicant after: Yu Yu photoelectric (Dongguan) Co., Ltd.

Address before: 523007, Dongguan City, Guangdong province Changan town side communities large plate two road

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Application publication date: 20130327