Compression mold and die-casting molding method

Abstract

The invention discloses a pressing mold and a die-cast formation method. The mold comprises a lower mold body and an upper mold body matched with the lower mold body to form a cavity. The lower mold body is provided with at least one protruding fixing pin (1), through holes are formed in the portions, corresponding to the fixing pins (1), of the upper mold body, the inner diameter of the through holes is larger than the outer diameter of the fixing pins (1), and the depth of the through holes is smaller than the height of the fixing pins (1). According to the pressing mold and the die-cast formation method, the protruding fixing pins are arranged on the lower mold body, the through holes with the inner diameter larger than the outer diameter of the fixing pins are formed in the portions, corresponding to the fixing pins, of the upper mold body, then other portions in the cavity formed between the upper mold body and the lower mold body are filled with filling materials, a prefabricated piece is wrapped by the filling materials accordingly, a manufactured product can be taken out after being cooled, and pitch break and other situations in forming screws and other shapes can be greatly avoided without influencing preparation of other parts made of materials such as aluminum alloy.

Description

technical field

[0001] The invention relates to the field of die-casting manufacturing, in particular to a pressing mold and a die-casting forming method. Background technique

[0002] Alloy materials such as aluminum alloy and magnesium alloy are widely used in daily production and life. For example, alloy materials such as magnesium and aluminum are often used in products such as automobiles, motorcycles, home appliances, and aerospace. Most of the parts have different shapes. Therefore, when processing some parts of the above products, many threads and other shapes are often encountered, so that it is necessary to perform operations such as tapping after die-casting, and tapping, etc. During operation, problems such as poor hardness of alloy materials such as aluminum alloy and magnesium alloy often lead to broken teeth, missing teeth or loosening when tapping to form threads and other shapes, which in turn makes the product more stable. The pass rate is greatly reduced....

Images