1. Swing disappearance die forging skills Apply certain oscillations in the process of disappearance die forging. Due to the different shapes of liquid and solid, the casting will have relative motion, which will eventually refine the condensation arrangement, advance the feeding and improve the mechanical function. Advantages: simple operation, low cost, does not pollute the environment.

2. Connect the lost die forging skills through the semi-solid lost die forging skills, make it associated with the semi-solid skills, manipulate the liquid-solid relative ratio to achieve the best performance form. Advantages: improve casting fine density, reduce segregation, improve dimensional accuracy, improve casting performance.

3. Use vacuum and low pressure disappearing die forging process, negative pressure disappearing die forging method and low pressure antigravity pouring method to combine forging skills. The filling process is completed under controlled air pressure, which improves the forging filling ability of the alloy. Due to the action of anti-gravity, the direct gate becomes a supplementary shortening channel, the pouring temperature loss is small, the pouring system of alloy castings is practical, the yield is high, the arrangement is fine, suitable for a variety of nonferrous alloys.

4. Press die forging skills are the combination of forging skills and pressing skills. The metal liquid is poured in the pressure irrigation box with sand, and when the foam is vaporized, the metal liquid is condensed and formed by pressure action. Advantages: High density of casting, eliminating defects such as shrinkage hole in casting.

5. The die forging process is combined with the suspension forging process. After pouring the metal liquid into the casting mold, the suspension agent is placed in a specific direction, or the suspension agent and EPS are used to make foam appearance, and the physical and chemical reaction with the metal liquid occurs, and then the overall arrangement of the casting is improved.

6. Shell forging skills are linked to investment forging skills. The method described in the previous "Outline of lost die" is to use lost shell forging skills, which are also commonly used today.

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