Method for rapidly manufacturing injection-mould insert with follow-cooling passageway

Abstract

The present invention discloses a quick manufacture method of injection mould insert with form-following cooling flow passage. Said method includes the following steps: firstly, according to the injection mould cavity surface profile utilizing three-dimensional CAS software (for example Pro / Engineer or Unigraphics) to set form-following cooling flow passage, then making the mould three-dimensional graph be derived according to STL format file and inputted into the computer of selective laser sintering system; according to user's requirements adopting mixed powder of metal with different properties and high-molecule as forming raw material powder, making said mixed powder undergo the process of the above-mentioned laser sintering system to obtain the mould insert blank, making the mould insert blank undergo the processes of degreasing, secondary sintering and metal melt-infiltration so as to obtain the compact insert.

Description

technical field

[0001] The invention belongs to the field of advanced rapid manufacturing, and in particular relates to a rapid manufacturing method of an injection mold insert with a conformal cooling channel. Background technique

[0002] Mold technology is one of the most widely used technologies in the manufacturing industry today. The cooling system of the mold has an important impact on the life of the mold, the production efficiency and quality of the product. The traditional method of mold manufacturing is to process the metal blank by turning, milling, planing, drilling, grinding, electric erosion, etc., so as to obtain the required mold shape and size. The above method is still difficult to process the inner hole whose track is a three-dimensional curve in the metal blank. Therefore, the cooling channel of the mold manufactured by the traditional method is generally composed of a group of straight openings, in order to form a closed flow channel. For roads, openin...