Background technology
With the portable 3C electronic products function such as the wearable device of high added value, mobile phone, intelligent watch, mobile electron not
The disconnected market competition for improving enhancing and fierceness, handset sheathing material have been widely used metal material, and good from machinability
6 series alloys to 7 higher series alloys, and hardness and the higher stainless steel material development of intensity, to meet city
Field is resistance to high added value mobile electronic product shell to fall, wear-resisting, scratch resistant, the demand in terms of resistance to deformation equal strength and hardness;
Because stainless steel possesses hardness height, intensity is high, and heat-resist, good corrosion resistance, density is small, light weight, and machinery is strong
The advantages that high is spent, is the ideal material for preparing handset shell, is applied to the high-end luxury brand mobile phone of more moneys at present;
But be different from the metals such as aluminium, zinc, magnesium alloy can die casting easy CNC processing the characteristics of, stainless steel cutting temperature is high, cutting
Power is big, easy adhesiving metal and compound impurities produce hardened layer in the presence of cutting heat, causes CNC processing difficulties.Adopt at present
Make appearance member 3C electronic products with stainless steel, using the technique of stainless steel housing+assembling, to reduce CNC processing, reduce
Cost, but its assembling structure is larger to complete machine structure limitation, and complicated packaging technology is cumbersome, unfavorable volume production and management and control,
The intensity of complete machine is influenceed again, the half-way house being constrained under the high factor of processing cost, greatly limits it in 3C electronics
Application on product appearance part.
Simultaneously because stainless steel material cost is high, tradition machinery processing subtracts material manufacture limitation, housing class product it is stainless
The practical efficiency of Steel material is less than 15%, and most materials are all wasted in machine cut processing, further lifting
The cost of stainless steel structure part.
Utility model content
Main purpose of the present utility model is overcome the deficiencies in the prior art, there is provided a kind of use for electronic products combined housing
And electronic product, overcome existing stainless steel material cost high, poor plasticity, be machined the problem of difficult.
To achieve the above object, the utility model uses following technical scheme:
A kind of use for electronic products combined housing, including be stacked outward appearance surface side stainless steel materials, non-appearance surface side
Sheet material and the plastic structure part with the non-appearance surface side sheet material integrated injection molding, outward appearance surface side stainless steel materials and
The non-appearance surface side sheet material with what laser beam perforation welding was formed on the non-appearance surface side sheet material by penetrating solder joint knot
It is combined.
The non-appearance surface side sheet material is aluminum alloy plate materials.
Solder joint is penetrated described in uniformly being arranged on the non-appearance surface side sheet material.
Gap between sheet material be no more than outward appearance surface side stainless steel materials and the non-appearance surface side sheet material any one
Minimum thickness 10%.
The thickness of outward appearance surface side stainless steel materials is 0.15mm~1.00mm, the thickness of the non-appearance surface side sheet material
For 0.20mm~3.0mm.
Position is cut formed with antenna on the combined housing, is formed and is used for and plastic cement knot on the periphery of antenna cutting position
The metal of conjunction draws plastic structure.
A kind of electronic product, there is described use for electronic products combined housing.
The beneficial effects of the utility model:
The utility model makes stainless steel casing possess stainless steel on the premise of realizing that electronic product uses stainless steel casing
Small, easy machining is lost, comprehensive production cost is low, the advantages of easy scale of mass production.The advantages of specific embodiment be embodied in
Lower aspect:
1st, more material integrated formed structures of stainless steel composite material+plastic-injection and inexpensive manufacturing process can be achieved;
2nd, stainless steel composite material and technique, while stainless steel outward appearance is obtained, the aluminium alloy at the material back side can be used
Material easy processing, CNC processing capacity and time are saved, fundamentally solved stainless steel cutting processing difficulties, slow, loss
Processing problem high, cost is high;
3rd, being integrally formed for stainless steel surface structure part is realized, solves conditional electronic product stainless steel casing assembler
Skill is complicated, while the problem of assembly technology limitation complete machine structure;
4th, stainless steel casing CNC processing capacities are greatly reduced in composite molding structure, make manufacturing enterprise in the base of existing equipment
Possess the ability that stainless steel casing manufactures on a large scale on plinth, reduce the risk of equipment investment and New technical use;
5th, key issue in the high value added product such as mobile phone and movable electronic can not be applied by solving stainless steel material,
Realize the stainless steel casing manufacturing technology of low cost, high-quality, high production capacity;
6th, the high added value consumer electronics such as mobile phone, 3C electronic products are met to surface of shell high rigidity, high intensity, scratch resistance
Wound, it is resistance to fall, the use demand of resistance to deformation, promoted the development of industry technology;
7th, realize that popularization of the high-end stainless steel material on electronic product casing uses, more crowds is benefited.
Embodiment
Embodiment of the present utility model is elaborated below.It is emphasized that the description below is only example
Property, rather than in order to limit the scope of the utility model and its application.
Refering to Fig. 1 a to Fig. 1 c, in one embodiment, a kind of use for electronic products combined housing, including be stacked
Outward appearance surface side stainless steel materials 101, non-appearance surface side sheet material 102 and with the non-appearance integrated injection molding of surface side sheet material 102 into
The plastic structure part of type, outward appearance surface side stainless steel materials 101 and the non-appearance surface side sheet material 102 pass through described non-outer
The solder joint that penetrates formed with laser beam perforation welding on surface side sheet material 102 is seen to be combined together.
In a preferred embodiment, the non-appearance surface side sheet material 102 is aluminum alloy plate materials.
In a preferred embodiment, solder joint is penetrated described in uniformly being arranged on the non-appearance surface side sheet material 102.
In a preferred embodiment, the gap between sheet material is no more than outward appearance surface side stainless steel materials 101 and described non-
The 10% of the minimum thickness of any one of appearance side plate material 102.
In a preferred embodiment, the thickness of outward appearance surface side stainless steel materials 101 is 0.15mm~1.00mm, described non-
The thickness of appearance side plate material 102 is 0.20mm~3.0mm.
In a preferred embodiment, position 103 is cut formed with antenna on the combined housing, the week in antenna cutting position
While the metal formed for being combined with plastic cement draws plastic structure.
In another embodiment, a kind of electronic product, there is described use for electronic products combined housing.
Refering to Fig. 2 to Fig. 7 b, in one kind makes example, a kind of preparation method of described use for electronic products combined housing,
Comprise the following steps:
Outward appearance surface side stainless steel materials 101 and non-appearance surface side sheet material 102 are stacked and the compression that exerts a force;
Sheet material welding is carried out using laser, by being penetrated on non-appearance surface side sheet material 102 with laser with small size pores,
And by laser small size pores high temperature is local melting or gasification outward appearance surface side stainless steel materials 101 and non-appearance surface side sheet material
102, both is mixed and is freezing together, so as to which outward appearance surface side stainless steel materials 101 and non-appearance surface side sheet material 102 will be melted
It is integrally molded so as stainless steel composite material;
The stainless steel composite material is processed into use for electronic products housing.
Preferably, sheet material welding is carried out using the nanosecond laser of optical fiber source.
Preferably, methods described is further comprising the steps of:
The stainless steel composite material is cut into the size of requirement by product and technological requirement, and carried out at de-stress
Reason;
Punch process is carried out to crop product, stainless steel clad metal part crude green body is made;
CNC preprocessings are carried out to stainless steel clad metal part crude green body;
Nano surface microporous processing is carried out to CNC pre-add workpiece;
Microporous handling member is molded to form metal and plastic cement integrated formed structure;
CNC finishing is carried out to metal and plastic cement integrated formed structure;
Incrustation processing is carried out to the appearance of product.
Preferably, methods described is additionally included in after punch process to needing the part of structural strengthening to carry out secondary laser perforation one
Body soldering.
Preferably, carrying out CNC preprocessings includes forming antenna cutting position 103, and in the periphery shape of antenna cutting position
Plastic structure is drawn into the metal for being combined with plastic cement.
Specific example of making, a kind of preparation method bag of use for electronic products combined housing are further described below in conjunction with accompanying drawing
Include following steps:
1st, as shown in Fig. 2 by laser combination process by together with the processing of aluminium alloy and stainless steel material laser welding:
By the dirty and oxide layer Chemical cleaning of metal material surface totally to weld,
Stainless steel surfaces are roughened by sandblasting or angle mill or rolling technology after metal material cleaning, lift steel and aluminium
Adhesion after material welding;
And stainless steel and aluminium alloy sheet are cut into the size of clicking technique requirement;
Sheet material is stacked and the compression that exerts a force, be allowed to gap between sheet material less than sheet material minimum thickness 10% with
It is interior;
Sheet material welding is carried out using the nanosecond laser of optical fiber source, by using laser penetration on the sheet material in non-appearance face
The material of (being aluminum alloy plate materials in this example) non-appearance surface side, and high temperature melt or another material of gasification, make laser in aperture
In the deep hole of footpath melt and gasify two kinds of metal mixeds and be freezing together, because action time is short, laser high temperature is to periphery material
Coverage it is small, reach the nanosecond rapid fusion for not damaging appearance;Preferably, equably arranged on the sheet material being stacked up
Cloth laser deep hole penetrates solder joint.
Preferably, the thickness of stainless steel is generally 0.15mm~1.00mm, the thickness of aluminium alloy be generally 0.20mm~
3.0mm。
The material of stainless steel can be SUS316L, and the material of aluminium alloy can be AL6061 or AL6063.
2nd, as shown in figure 3, integrally formed stainless steel composite material to be cut into the chi of requirement by product and technological requirement
It is very little, and de-stress processing is carried out, so as to follow-up forging punch process.
3rd, a whole set of punch process such as multiple bending, stretching, punching are carried out to the stainless steel composite material cut, be made
Stainless steel clad metal part crude green body, as shown in figures 4 a and 4b:
Clicking technique carries out roughing to the architectural feature of metal product, and reserves follow-up CNC allowance, and strictly controls
Dimensional accuracy processed, with process process requirements after satisfaction;
The annealing of inter process is carried out after each drawing, and is carried out to deforming big drawing and final drawing and moulding process
The heat treatment of internal stress is eliminated, the plasticity of stainless steel composite material is improved, to lift quality and yield;
Process containing critical size is modified and corrected or shaping is processed, to ensure positioning hole, datum plane
Machining accuracy;
The integrally molded processing of secondary laser deep hole is carried out to the part that structural strengthening is needed after punch process, to ensure that product makes
Use demand.
4th, the CNC preprocessings before nanometer injection are carried out to the metalwork crude green body of punching press, as shown in figure 5 a and 5b, to meet
Nanometer in-mould injection, after-processing technology, the demand of product structure and complete machine function.
Metal connecting structure at antenna cutting position is strengthened, stuffing pressure when avoiding in-mould injection, and rear CNC processing fashionable dresses
Accurate to dimension caused by deformation reduces when folder and cutting stress;
The antenna cutting position periphery at the metalwork back side forms the metal combined with plastic cement and draws plastic structure, to lift follow-up nanometer
Adhesion during injection between plastic cement and metal, ensure complete machine intensity.
5th, nanometered disposal is carried out to metal product surface regarding product adhesion strength demand, is allowed to be formed in metal surface and receives
The other micropore of meter level, to strengthen the adhesion between metal and plastic cement.
6th, as shown in figures 6 a and 6b, the complete stainless steel clad metal part of nanometered disposal is put into forming plastic cement in plastic mold
Part, form metal and plastic cement integrated formed structure;
Product can be carried out strengthening plastic cement and metal bond strength and eliminate stress according to process requirements after nanometer injection
Ageing Treatment, baking temperature and time require to carry out according to plastic material and Shooting Technique.
7th, as shown in figs. 7 a and 7b, plastic cement and the integrally formed structural member of stainless steel clad metal are subjected to camera
The CNC finishing such as hole, flash lamp aperture, assembling button bit, positioning bar, metal connection position, fitted position surplus;
The larger process of CNC processing capacities or the process being had a great influence to structure, such as metal connection position removing step (blanking),
Carry out except internal stress is handled, to ensure the stability of size in process;
8th, metalwork part is polished according to product requirement, sandblasting, wire drawing, the processing of the incrustation such as PVD, obtain high-strength
Degree, high rigidity, novel bright stainless steel metal texture effect.
Above content is to combine specific/preferred embodiment further detailed description of the utility model, no
It can assert that specific implementation of the present utility model is confined to these explanations.For the common skill of the utility model art
For art personnel, without departing from the concept of the premise utility, it can also make to the embodiment that these have been described
Some replacements or modification, and these are substituted or variant should all be considered as belonging to the scope of protection of the utility model.