Method for casting large investment pattern through rapid reversing and 3D printing

Abstract

The invention relates to a method for casting a large investment pattern through rapid reversing and 3D printing. The method comprises the following steps that firstly, a reversed object is subjected to three-dimensional scanning through a scanner; secondly, rapid reverse three-dimensional modeling is conducted through software; thirdly, a three-dimensional model is subjected to data treatment through hierarchical processing software; fourthly, model manufacturing data obtained after data treatment are conveyed into a rapid forming machine, and rapid forming of a 3D printing model is conducted; fifthly, the 3D printing model serves as a lost foam casting to conduct investment pattern casting, and an investment pattern casting of the 3D printing model is obtained; and sixthly, the investment pattern casting is machined. Consumables used in a 3D printer are ordinary consumables PLA which are low-energy-consumption ecological environment-friendly materials most commonly used by the 3D printer, biodegradability is achieved, and bad influences on the human body and the environment are avoided. Due to the fact that the consumables PLA are made of corn, are renewable resources and have an extremely low shrinking percentage, it means that the consumables PLA are resistant to deformation even in a very large printing size.

Description

technical field [0001] The invention relates to an investment casting method, in particular to a rapid reverse and 3D printing large-scale investment casting method. Background technique [0002] 3D Printers (3D Printers) for short (3DP) is a magical printer designed by an inventor named Enrico Dini, which can not only "print" a complete building, but even Print the shape of any desired item for the astronauts in the spaceship. [0003] The reverse engineering of existing 3D models is time-consuming and laborious, some of them are not accurate, and the technology is difficult to master. The existing small-batch casting is expensive and time-consuming to build molds, and once the mold is wrong, the cost will increase exponentially. The consumables used in the existing 3D printing investment casting are expensive, which is not conducive to the cost control of large-scale investment casting, and the corresponding 3D printer is expensive. Contents of the invention [0004] ...

AI Technical Summary

Problems solved by technology

[0003] Existing 3D models are time-consuming and laborious to reverse, some are not accurate, and the technology is difficult to master

Existing small-batch casting is expensive and time-consuming to build molds, and once the mold is wrong, the cost will increase exponentially

The consumables used in the existing 3D printing investment casting are expensive, which is not conducive to the cost control of large-scale investment casting, and the corresponding 3D printer is expensive

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