Shenzhen when aluminum alloy thin-wall precision parts
processing aluminum alloy material is how to effectively reduce the deformation of precision machinery parts processing commonly used one kind of material, its plasticity and toughness, also has good corrosion resistance, easy coloring film, oxidation effect is good wait for a characteristic.
Everything has its two sides, the disadvantage of aluminum alloy material is adhesion strong, in the process of machining
chip to successful eduction, which affects the precision machinery parts processing surface roughness.
Aluminum alloy material and a weakness is easy to produce hot deformation in machining process, strong happen on perpendicular to the direction of feed cutting vibration, especially the thin wall parts, leading to poor flatness after precision machining, cutting tool and the workpiece in cutting vibration not only affects the surface machining quality of parts, reduce the precision parts machining precision, but also can reduce the service life of machine tools and cutting tools.
Beard needle for this kind of situation, on the thin-wall precision machinery parts processing, can design a jig in advance.
In general, the design principle of fixture has the following points: has sufficient strength and rigidity, and artificial aging treatment;
The clamping reliable;
With good manufacturability.
In view of the poor rigidity aluminum alloy precision machining thin-walled parts, the fixture design should also pay attention to the following aspects: 1.
Anchor point to inherit the clamping force, so should have a certain strength and rigidity.
Stability and low localization accuracy from consideration, contact area as small as possible, from the function of clamping force, the greater the contact area, the better, because the machining thin-walled parts is easy to produce hot deformation, so should increase the contact surface.
Under the condition of same clamping, such as clamping deformation of parts in 3 p. m. to 1, and the clamping deformation of uniform 6 is only 1/16 of the 3 points, and 12 clamping deformation is almost zero, is uniform and multipoint clamping can greatly reduce the clamping deformation of aluminium alloy thin wall parts, according to the structure characteristics of the thin-wall parts, should be appropriately reduce the clamping force and increase the number of compression force exerting point to reduce clamping deformation of the parts, in addition, also can change the clamping force of the location, the clamping force for rigid after good precision machinery parts processing surface of workpiece.
Supplementary bearing with thin wall and large size parts, to reduce the compression deformation, the fixture can be used in the auxiliary support.
The above information is derived from the precision parts processing factory in shenzhen Xavier precision components co. , LTD. , more products please click on the link to see http://www for details.
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