Summary of the invention
The present invention solves in the prior art by providing a kind of processing method of the thin-wall aluminum alloy with petal L-type end frameIt is be easy to cause dimensional tolerance and the underproof technical problem of geometric tolerance, realizes the technology effect for the requirement for meeting productFruit.
A kind of processing method the present invention provides thin-wall aluminum alloy with petal L-type end frame, comprising:
Interior shape of the rough turning thin-wall aluminum alloy with petal L-type end frame；
Petal of the thin-wall aluminum alloy described in coarse milling with petal L-type end frame；
Interior shape of the thin-wall aluminum alloy described in half finish turning with petal L-type end frame；
Interior shape of the thin-wall aluminum alloy described in finish turning with petal L-type end frame；
Finish-milling cuts petal of the thin-wall aluminum alloy with petal L-type end frame.
Further, during interior shape in the rough turning thin-wall aluminum alloy with petal L-type end frame, described thinFalse boss is stayed on the small end periphery of wall aluminum alloy strip petal L-type end frame.
Further, interior shape of the thin-wall aluminum alloy with petal L-type end frame described in half finish turning, comprising:
Large end face with the thin-wall aluminum alloy with petal L-type end frame positions, and thin-wall aluminum alloy described in half finish turning is wounded in the battleThe small end face of valve L-type end frame；
Large end face of the thin-wall aluminum alloy with petal L-type end frame is put down in tune face, and thin-wall aluminum alloy described in half finish turning is wounded in the battleThe interior shape of valve L-type end frame；
Shape of the thin-wall aluminum alloy described in half finish turning with petal L-type end frame.
Further, during interior shape of the thin-wall aluminum alloy described in half finish turning with petal L-type end frame,
By the way of crowded face outer circle, large end face of the thin-wall aluminum alloy with petal L-type end frame is put down；
By the way of pressing the false boss, interior shape of the thin-wall aluminum alloy described in half finish turning with petal L-type end frame；
By the way of shape face in pressure small end, shape of the thin-wall aluminum alloy described in half finish turning with petal L-type end frame.
Further, interior shape of the thin-wall aluminum alloy described in the finish turning with petal L-type end frame, comprising:
Large end face with the thin-wall aluminum alloy with petal L-type end frame positions, the band of thin-wall aluminum alloy described in finish turning petal LThe small end face of type end frame；
Large end face of the thin-wall aluminum alloy with petal L-type end frame, the band petal of thin-wall aluminum alloy described in finish turning are put down in tune faceThe interior shape of L-type end frame；
Shape of the thin-wall aluminum alloy described in finish turning with petal L-type end frame.
Further, during interior shape of the thin-wall aluminum alloy described in the finish turning with petal L-type end frame,
By the way of crowded face outer circle, large end face of the thin-wall aluminum alloy with petal L-type end frame is put down；
By the way of pressing the false boss, interior shape of the thin-wall aluminum alloy described in finish turning with petal L-type end frame；
By the way of shape face in pressure small end, shape of the thin-wall aluminum alloy described in finish turning with petal L-type end frame.
Further, the finish-milling cuts petal of the thin-wall aluminum alloy with petal L-type end frame, comprising:
Flower of the thin-wall aluminum alloy with petal L-type end frame is cut using the high-speed cutting mode finish-milling of small cutting-in, roughing feedValve.
Further, during the finish-milling cuts petal of the thin-wall aluminum alloy with petal L-type end frame, using threeA equal height cushion block pads small end inner face, levelling small end face, and presses on the outside of the small end face.
Further, after petal of the thin-wall aluminum alloy described in the coarse milling with petal L-type end frame, further includes:
Artificial aging, destressing.
Further, the artificial aging, destressing, comprising:
Stress relief annealing keeps the temperature 2~3 hours, air-cooled.
One or more technical solution provided in the present invention, has at least the following technical effects or advantages:
By optimization technological process, it is released effectively machining stress, to reduce machining stress to part deformationInfluence, effectively control the deflection of part, thus solve and be easy to cause dimensional tolerance and geometric tolerance in the prior artUnderproof technical problem realizes the technical effect for meeting the requirement of product.
Specific embodiment
The embodiment of the present invention solves existing by providing a kind of processing method of the thin-wall aluminum alloy with petal L-type end frameIt is easy to cause dimensional tolerance and the underproof technical problem of geometric tolerance in technology, realizes the skill for meeting the requirement of productArt effect.
Technical solution in the embodiment of the present invention is to solve the above problems, general thought is as follows:
By optimization technological process, it is released effectively machining stress, to reduce machining stress to part deformationInfluence, effectively control the deflection of part, thus solve and be easy to cause dimensional tolerance and geometric tolerance in the prior artUnderproof technical problem realizes the technical effect for meeting the requirement of product.
Above-mentioned technical proposal in order to better understand, in conjunction with appended figures and specific embodiments to upperTechnical solution is stated to be described in detail.
Referring to Fig. 1, processing method of the thin-wall aluminum alloy provided in an embodiment of the present invention with petal L-type end frame, comprising:
Step S110: interior shape of the rough turning thin-wall aluminum alloy with petal L-type end frame；
In order to remove extra machining allowance, to guarantee that the surplus in each shape face is uniform, in rough turning thin-wall aluminum alloyIt is 3mm~5mm in each face made allowance during interior shape with petal L-type end frame.
In order to guarantee part reliable clamping when shape in semifinishing, and reduce shadow caused by the frame circularity of clamping power opposite endIt rings, during interior shape of the rough turning thin-wall aluminum alloy with petal L-type end frame, in thin-wall aluminum alloy band petal L-type end frameSmall end periphery on stay false boss.
Step S120: petal of the coarse milling thin-wall aluminum alloy with petal L-type end frame；
In order to discharge stress, and the coordination surplus after reserved part deformation in advance, in coarse milling thin-wall aluminum alloy band petal LIt is 3mm~5mm in each face made allowance during the petal of type end frame.
Interior shape of S130: the half finish turning thin-wall aluminum alloy of step with petal L-type end frame；
This step is specifically described, step S130 is specifically included:
Large end face positioning with thin-wall aluminum alloy with petal L-type end frame, half finish turning thin-wall aluminum alloy band petal L-type end frameSmall end face；
Tune face, large end face of the flat thin-wall aluminum alloy with petal L-type end frame, half finish turning thin-wall aluminum alloy band petal L-type endThe interior shape of frame；
Shape of the half finish turning thin-wall aluminum alloy with petal L-type end frame.
In order to realize half finish turning of the part under thin-walled state, in the operating process of step S130,
By the way of crowded face outer circle, large end face of the flat thin-wall aluminum alloy with petal L-type end frame；
By the way of pressing false boss, interior shape of the half finish turning thin-wall aluminum alloy with petal L-type end frame；
By the way of shape face in pressure small end, shape of the half finish turning thin-wall aluminum alloy with petal L-type end frame.
In order to control the deformation of part, during interior shape of the half finish turning thin-wall aluminum alloy with petal L-type end frame,It is 0.8mm~1.2mm in the equal made allowance in each face of interior shape.
Step S140: interior shape of the finish turning thin-wall aluminum alloy with petal L-type end frame；
This step is specifically described, step S140 is specifically included:
Large end face positioning with thin-wall aluminum alloy with petal L-type end frame, finish turning thin-wall aluminum alloy is with petal L-type end frameSmall end face；
Tune face, large end face of the flat thin-wall aluminum alloy with petal L-type end frame, finish turning thin-wall aluminum alloy band petal L-type end frameInterior shape；
Shape of the finish turning thin-wall aluminum alloy with petal L-type end frame.
In order to realize finish turning of the part under thin-walled state, in the operating process of step S140,
By the way of crowded face outer circle, large end face of the flat thin-wall aluminum alloy with petal L-type end frame；
By the way of pressing false boss, interior shape of the finish turning thin-wall aluminum alloy with petal L-type end frame；
By the way of shape face in pressure small end, shape of the finish turning thin-wall aluminum alloy with petal L-type end frame.
Step S150: the petal of finish-milling skiving wall aluminum alloy strip petal L-type end frame.
This step is specifically described, step S150 is specifically included:
Using small cutting-in, the petal of the high-speed cutting mode finish-milling skiving wall aluminum alloy strip petal L-type end frame of roughing feed.
In order to avoid causing part to deform due to clamping force, in the operating process of step S150, using three etc.High cushion block pads small end inner face, levelling small end face, and presses on the outside of small end face.
What needs to be explained here is that petal should be merged out during using three equal height cushion block pad small end inner facesPosition.
It should also be noted that, in order to discharge machining stress sufficiently, so that the part deformation amount of following process is reduced,After step S120, further includes:
Artificial aging, destressing.
In the present embodiment, artificial aging, destressing, comprising:
Stress relief annealing keeps the temperature 2~3 hours, air-cooled.
In the present embodiment, annealing temperature is 170 DEG C.
Processing method provided in an embodiment of the present invention is described further below with reference to specific embodiment and attached drawing.
As shown in Figures 2 and 3, part is aluminum alloy strip petal L-type end mount structure.
One embodiment of the present of invention holds frame blank annulus, having a size of Φ 626mm × Φ 500mm × 85mm.Part rulerVery little: big end outer circle is Φ 606.68mm, and it is highly 75mm that small end outer circle, which is Φ 592.26mm, sidewall thickness 2mm, interior shape flowerValve is Φ 514.
Specifically processing method successively includes:
Step 1: rough turn interior shape, reserves false boss, structure is as shown in Figure 4 and Figure 5.Rough turn each face made allowance of process3mm；When rough turn, outer circle, interior shape are pressed from both sides；Pressing plate presses interior shape, turning, and stays false boss on small end periphery, pressesHolding width is 8mm, with a thickness of 10~15mm；
Step 2: large end face positions, petal is rough milled, having a size of Φ 567mm.Rough mill each face made allowance 3mm of process；
Step 3: artificial aging, destressing.
Step 4: vertical vehicle semifinishing small end face, flatness 0.1mm；Sleeping carriage presses false boss, and flat large end face guaranteesHeight is 77mm；Shape in semifinishing, made allowance 1mm；Pressing plate, presses inner face, and half smart car shape (retains false boss).WorkIt is 5mm that skill boss, which presses width, can control width value by adjusting the thickness of false boss.In half smart car, using crowded faceThe mode of outer circle, flat small end face；Interior shape is processed by the way of pressing false boss；It is processed by the way of shape face in pressure small end outerShape；When half smart car, it is 5mm that false boss, which presses width, can control width value by adjusting the thickness of false boss.Half smart carEach face made allowance 1mm of process.
Step 5: Li Cheping small end face, flatness 0.05mm, sleeping carriage press false boss, flat large end face guarantees height 75± 0.1mm, flatness 0.05mm；Inner hole and interior shape are finished to size, inner hole isWith a thickness of 13 ±0.1mm；Pressing plate presses inner face, and smart car shape to size, wall thickness 2mm, outer circle and coaxiality of inner hole are 0.1.In smart carWhen, by the way of crowded face outer circle, flat small end face；Interior shape is processed by the way of pressing false boss；Using shape face in pressure small endMode process shape；When smart car, it is 5mm that false boss, which presses width, can control width by adjusting the thickness of false bossAngle value.Smart car to size requires.
Step 6: centering small end outer circle 0.05mm, finish-milling petal to size requirement guarantee that concentricity is 0.1.In finish-milling flowerWhen valve, small end inner face (merging out petal position, and large end face is hanging) is padded using three equal height cushion blocks, levelling small end face, andIt presses on the outside of small end face.
What needs to be explained here is that first positioning when carrying out half smart car and smart car with large end face, small end face is processed；It adjusts againFace is positioned with small end face, flat large end face；Shape in first processing, finally processes shape.In finish-milling, using small cutting-in, roughing feedHigh-speed cutting mode finishes petal.With 10 carbide end mill of Φ 8 or Φ, speed of mainshaft S≤10000rpm, feed speedF≤3500mm/min, every layer of cutting-in ap 0.3~0.5mm of ≈ add coolant liquid in processing.
[technical effect]
The embodiment of the present invention ensure that the equal of machining allowance by the process allowance of rational design process flow and each processEven and deformation elimination.By reserved false boss, squeeze the installation way such as outer circle, pressure side face, optimization turnery processing sequence andMilling Process mode reduces the clamping deformation in process, improves Product Precision.Outside by planar end surface-car shape-vehicleThe turning mode of shape and the milling mode of high-speed cutting, reduce the machining deformation of product, ensure that the processing quality of product.Rationally, reliably, stable product quality can be effectively ensured product and meet requirement process of the embodiment of the present invention.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basicProperty concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted asIt selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the artMind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologiesWithin, then the present invention is also intended to include these modifications and variations.