In the early years due to the development of productivity, aluminum alloy handplate manufacturing is mainly done by hand. Now with the continuous progress of science and technology, 3D printing hand plate in theory should be a good aluminum alloy hand plate manufacturing method. There are many types of 3D printing hand boards, but the basic idea is the same. Using CAD models, the parts are divided into many levels of manufacturing, which leads to high processing accuracy in the layer, especially in the shallow plane error.

SLA photosensitive resin is widely used in the manufacture of aluminum alloy hand plate. The material cost is about 10-20 yuan /g at present, including additional parts such as support parts. SLA machine processing capacity is calculated by volume, single coordinate size is small, many large size parts can not be processed, large SLA machine aluminum alloy hand plate production enterprises are difficult to bear. On the other hand, photosensitive resin differs greatly from common materials, which limits the coloring and gold processing of the model. Of course, the cost problem can be at least partially solved as production scales up.

Other 3D printing hand plates such as FDM melt deposition molding, SLS selective laser sintering technology because of the generated material has a gap, is mostly used in the manufacturing of aluminum alloy hand plates with low requirements.

The layering accuracy of LOM laminated solid manufacturing method is low. Many researchers are improving the layering fitting accuracy through various optimization methods, but there is still a certain distance. At present, rapid prototyping equipment has not become the standard allocation of aluminum alloy hand plate enterprises, but is only configured in large aluminum alloy hand plate manufacturing enterprises, mostly with SLA photosensitive resin selective curing.

Maintenance of polishing liquid for aluminum alloy hand plate

Aluminum alloy hand plate processing polishing liquid preparation and use with ordinary grinding liquid is basically the same, but in the choice of dilution water to be more strict. Because many ions in the water will produce corrosion effect on aluminum, if the content of these ions is too much, it will reduce the rust prevention performance of the grinding liquid, especially in the process of rust prevention, such as chloride ions, sulfate ions and heavy metal ions.

In addition to the maintenance of aluminum alloy hand processing polishing liquid, such as the daily maintenance of ordinary polishing liquid, we also need to pay attention to the following points:

1. Filtration: Because aluminum alloy is prone to react to produce aluminum soap under alkaline conditions, which damages the stability of polishing liquid, the polished aluminum chips should be filtered out immediately to avoid the reaction between aluminum chips and polishing liquid, which will affect the use effect and service life of polishing liquid. In the grinding process of grinding out the aluminum chips are both small and light, it is difficult to precipitate down, such as not filtering or filtering is insufficient, aluminum chips will be with the grinding liquid circulation system is taken to the processing area and scratch the surface of the workpiece, affecting the gloss of the processing surface.

2.ph value: Because aluminum is very sensitive to the ph value of grinding liquid, it is necessary to regularly detect the ph value of aluminum alloy grinding liquid, and adjust it in time if abnormal is found. Use ph control in 8 ~ 9, so as to avoid excessive ph value corrosion workpiece or ph value is too low to cause bacteria to multiply and affect the stability and performance of grinding liquid.

3. Add new liquid regularly: not only to ensure the good lubrication of the grinding liquid, but also to ensure the grinding liquid good rust resistance and sterilization and corrosion resistance, in order to extend the service life of the grinding liquid. Aluminum alloy hand plate processing grinding fluid selection is very important, not only to ensure that the grinding fluid good lubricity, rust resistance, but also good stability, filter and easy maintenance, only in this way can be processed to meet the requirements of the product, greatly reduce the cost of grinding fluid.

SCC638B is a semi-synthetic water-based grinding fluid, designed for aluminum alloy processing, has good oxidation protection on aluminum alloy surface, excellent lubricity and extreme pressure, suitable for various aluminum alloy processing processes, including turning, milling, drilling, grinding, reaming, blind hole/through hole tapping, etc.