Additive manufacturing identical parallel machine scheduling method for selective laser melting process

A technology of additive manufacturing and laser selection, which is applied in the direction of additive manufacturing, additive processing, manufacturing computing systems, etc.

Active Publication Date: 2021-02-02
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a method for scheduling the same parallel machine for additive manufacturing oriented to the laser selective melting process, to solve the pr

Method used

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  • Additive manufacturing identical parallel machine scheduling method for selective laser melting process
  • Additive manufacturing identical parallel machine scheduling method for selective laser melting process
  • Additive manufacturing identical parallel machine scheduling method for selective laser melting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0138] A part set with 10 parts and three AM machines with the same processing parameters and performances were selected to carry out the research experiment, in which the construction direction, volume, delivery date and projected area data of the parts are shown in Table 1; The processing parameters are shown in Table 2.

[0139] Table 1 Data of parts to be processed

[0140]

[0141]

[0142] Table 2 AM machine processing parameters

[0143]

[0144] Table 3 Performance comparison of FA and IFA

[0145]

[0146] The improved firefly algorithm is compared with the basic firefly algorithm, and the simulation experiment is carried out by Matlab R2018b programming tool. The number of individuals in the firefly population is 200, and the maximum number of iterations MaxG is 300; in the algorithm, the maximum attractiveness β 0 is 1, the initial step size α 0 is 1, and the light intensity absorption coefficient γ is 0.5. In order to eliminate the influence of the...

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Abstract

The invention relates to an additive manufacturing identical parallel machine scheduling method for a selective laser melting process. The method comprises the following steps of S1, obtaining machining operation related parameters; S2, constructing a machining cost model according to the machining operation related parameters; S3, establishing an additive manufacturing identical parallel machinescheduling model considering the part construction direction by taking minimization of the unit volume machining cost of all operations as an optimization target according to the machining cost model;S4, constructing an improved firefly algorithm; and S5, based on the improved firefly algorithm, obtaining final optimization target values of all the operations and corresponding scheduling schemes.The additive manufacturing identical parallel machine scheduling for selective laser melting process is realized, and the parallel machine scheduling efficiency is improved while the part machining cost is reduced.

Description

technical field [0001] The invention relates to the field of parallel machine scheduling for additive manufacturing, and relates to a scheduling method for the same parallel machine for additive manufacturing oriented to a laser selective melting process. Background technique [0002] Additive manufacturing (AM), also known as 3D printing and rapid prototyping technology, is based on the principle of layered manufacturing to directly process digital models into physical parts. It is a new manufacturing technology opposite to subtractive manufacturing. In recent years, AM technology has gradually developed and matured, and has been widely used in the fields of aerospace, medicine, automobiles, molds, and cultural creativity. It has been praised by many experts as a representative technology of the "third industrial revolution". Selective Laser Melting (SLM) technology is one of the important technologies in the field of metal AM. It uses a high-energy laser beam to melt metal...

Claims

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Application Information

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IPC IPC(8): B22F10/28B22F10/85B33Y10/00B33Y50/02G06Q10/06G06Q50/04G06N3/00
CPCB33Y10/00B33Y50/02G06N3/006G06Q10/0631G06Q10/067G06Q50/04Y02P90/30
Inventor 黄彬赵志斌
Owner FUZHOU UNIV
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