The plastic processing of aluminum alloy
should ensure that the product achieves stable and consistent required dimensional accuracy, mechanical properties and good surface quality. Attention should also be paid to the prevention of mechanical damage and corrosion, control of grain size and organizational structure. These quality requirements mainly depend on the production process and equipment to ensure. The following is to introduce you the advantages of aluminum alloy processing and the 5 common problems in processing, welcome to read!
The advantages of aluminum alloy processing are.
First, easy to process. After adding certain alloying elements, we can obtain forged aluminum alloy with outstanding forging function or deformed aluminum alloy with good processing plasticity.
Second, good electrical and thermal conductivity. Aluminum conductivity and thermal conductivity function is second only to silver, copper and gold.
Third, high strength. The strength of aluminum and aluminum alloy is high. After a certain degree of cold processing can strengthen the strength of the matrix, some trademarks of aluminum alloys can also be strengthened through heat treatment.
Fourth, the density is small. The density of aluminum and aluminum alloy is close to 2.7g/, which is about 1/3 of iron or copper.
Aluminum alloy processing
5 common problems in aluminum alloy processing
First, tapping rotten teeth, sticky knife, processing surface finish is not up to standard
Aluminum alloy is soft in nature and has a low melting point, so it is easy to have rotten teeth or sticky knives in a bad processing environment. In addition to changing the processing parameters such as avoiding medium-speed processing that is easy to sticky knives, the cutting fluid with better lubrication and cooling performance should be used.
Second, the non-machining surface mold
Most of the problems in aluminum alloy processing are caused by cutting fluid. The inadequacy of the cutting fluid product design itself means that it is difficult to avoid problems during processing. The non-machined surface of die-casting aluminum alloy has a sensitive response to the corrosion inhibition ability of cutting fluid, and mold is one of its manifestations. Aluminum mold is usually caused by the cutting fluid aluminum corrosion inhibition capacity and cutting fluid microbial control capacity is not enough, the two causes of mold phenomenon is different, but in most cases, the cutting fluid aluminum corrosion inhibition capacity is not enough to cause mold. When the mold phenomenon to improve the corrosion inhibition ability of cutting fluid and the improvement of storage methods after machining.
Third, the processing surface residue affects the later cleaning
Aluminum alloy machining
generally needs to go through the cleaning process. If the aluminum alloy cutting fluid is not cleaned well, it will produce residue on the aluminum alloy processing surface, which will affect the appearance or later processing such as spraying code. Usually related to the design of the emulsification system of cutting fluid products and the cleaning process.
Fourth, the machining process produces a lot of foam
Cutting fluid foam in the machining process is generally to be avoided as much as possible. Inadequate cooling caused by foam, serious tool wear will lead to poor processing results and reduced processing efficiency. In particular, with the renewal of machine tools, five-axis machining centers have higher requirements for cutting fluid foam. Cutting fluids with insufficient foam suppression and defoaming capabilities can cause the fluid level to rise abnormally, triggering the fluid level alarm and stopping the machine from working properly. The improvement of cutting fluid foam performance is not only the use of the method of adding defoamer can be properly resolved, but should be the overall optimization of the system design of cutting fluid products.
Fifth, cutting fluid life is short
In the process of processing aluminum alloy
workpiece such as piston, transmission block, etc., there is a common problem of short cutting fluid life. The service life of cutting fluid is not only related to the frequency of changing the slot and the cost of input, but also affects the quality of processing, the working environment of the site and many other aspects. The service life of cutting fluid is mainly reflected in the problem of stickiness and corruption after a period of time. Stickiness makes it difficult to detach aluminum chips from the surface of aluminum parts and produces indentations, while corruption reduces the quality of cutting fluid processing and deteriorates the working environment on site. Stickiness is related to the choice of emulsification system and the control ability of microorganism in the design of cutting fluid, while corruption is related to the introduction of microbial nutrients and the choice of bactericidal and antibacterial system in the cutting fluid, and of course, it is also related to the use and maintenance of cutting fluid on site.
Thanks for reading, the above is the introduction of the advantages of aluminum alloy processing and the 5 common problems in processing for reference only. If you want to know more details about aluminum alloy machining
, please call us for more information.