Which three items can be cast into a standard three-dimensional flexible welding platform?

The flexible three-dimensional welding platform shall comply casting design requirements and the requirements of the process itself of the machining equipment, but should also meet the requirements of the casting process, the three-dimensional structure of the flexible welding platen casting design should note the following:


First, to facilitate the manufacture of models, core boxes and styling:


1) The external shape of the casting should be simple, so as to facilitate the moulding, the casting parting surface should be as flat as possible, and the number should be the smallest;

2) The internal cavity of the casting shall not be used with less or less cores during casting. When the core is used, it shall be convenient for its support, fixation and exhaust sand production. If necessary, sufficient process holes shall be provided.


3) For the internal and external sides of castings and ribs and other structures, a certain degree of structural inclination shall be provided in the direction of die-cutting;


4) The boss part on the casting of the three-dimensional flexible welding platform should not be too different from the casting body. It is better to take the same height. Several bosses on the same surface are closer together, and it is better to connect the bosses together.

Second, to reduce the tendency to produce three-dimensional flexible welding platform casting defects:


1) The wall thickness of the casting should be uniform to prevent shrinkage and hot cracking. When it is necessary to ensure the sequence solidification conditions, it should be made to have a wall thickness that changes in one direction. When it is necessary to ensure the simultaneous solidification conditions, it should try to make It has a constant section thickness;


2) The connection between the wall and the wall of the casting of the three-dimensional flexible welding platform shall be strictly prevented from sharp corners and metal agglomeration. The thick-walled and thin-walled walls shall be gradually transitioned to prevent sudden changes so as to avoid hot spots and stress concentration and form hot cracks and shrinkage. Wait;

3) For the partial thick section of the casting, the hollowed out or cast hole structure should be used as far as possible, and reinforced with ribs;


4) casting holes in the plane of the casting shall be reinforced with kerfs to reduce the wall thickness;


5) The casting structure should be so that it can shrink without hindrance when it cools;

6) It should be avoided to have a large horizontal surface in the casting;


7) In the three-dimensional flexible welding platform castings, large-area sandwich chambers such as waterways and gas lines should have a number of connecting columns.


Third, to ensure that the three-dimensional flexible welding platform castings have good formability, the minimum wall thickness of the control castings is not less than the allowable value.