SLM forming method based on intelligent scanning path planning and product

A scanning path, laser scanning path technology, applied in the SLM forming method and product field based on intelligent scanning path planning, can solve the problems of no fundamental change in scanning strategy, unoptimized scanning method, and unchanged scanning method, so as to avoid heat Concentration, avoiding temperature gradient, and improving the effect of forming accuracy
CN111299577AInactive Publication Date: 2020-06-19HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2020-06-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention belongs to the related technical field of additive manufacturing, and particularly discloses an SLM forming method based on intelligent scanning path planning and a product. The method comprises the following steps that (a), when a three-dimensional model of a to-be-formed part is sliced, part contour information included in a plurality of slice layers and each slice layer are obtained; (b) for each slice layer, the slice contour is divided into a plurality of areas according to the part contour information in the slice layer, and the geometric feature of each area is obtained; (c), a laser scanning path corresponding to each area is planned according to the geometrical characteristics of each area, and a scanning sequence of each area is set so as to obtain the scanning sequences and the laser scanning paths of all the areas in each slice layer; and (d), the slice layers of the to-be-formed part are machined layer by layer according to the scanning sequences and the scanning paths, and the needed part is obtained. According to the SLM forming method based on intelligent scanning path planning and the product, the problem of difference of process requirements of different characteristics of the same part during SLM forming is solved, and the quality of the formed part is improved.
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Description

technical field

[0001] The invention belongs to the technical field related to additive manufacturing, and more specifically relates to an SLM forming method and product based on intelligent scanning path planning. Background technique

[0002] Selective Laser Melting (SLM) is one of the fastest-growing additive manufacturing technologies in recent years. It uses metal powder (such as stainless steel, titanium alloy, copper alloy, etc.) For planning information, high-power laser is used to scan layer by layer, so that the metal powder in the scanned area is melted and solidified to form, and the unscanned area is still in a discrete state, thus forming layer by layer. The method is not limited by the complexity of the formed parts, does not need special matching tooling molds, and has good mechanical effects and high precision of the formed parts, so it has a good application prospect.

[0003] In the SLM forming process, laser parameters play a vital role in the quality of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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