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SLM forming process parameter monitoring system

A molding process and vibration monitoring system technology, applied in the field of 3D printing monitoring, can solve problems such as failure to monitor process parameters in real time

Pending Publication Date: 2022-03-08
浙江机电职业技术学院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problem of failing to monitor process parameters in real time in the prior art, the present invention proposes a SLM molding process parameter monitoring system

Method used

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  • SLM forming process parameter monitoring system

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Embodiment Construction

[0030] Such as figure 1 As shown, the SLM equipment molding system of the present invention mainly includes a laser power adjustment and scanning system, a powder feeding and spreading motion system, a molding bottom plate vertical motion system, and the like. In order to solve the shortcomings of the existing SLM equipment that cannot monitor process parameters and feedback in real time, the present invention adds a real-time measurement and adjustment system for the surface temperature field distribution of the molded workpiece, a laser sintering protection airflow measurement and adjustment system, and optical signal monitoring during the molding process on the SLM molding equipment. System, vibration monitoring system of molding equipment motion system, powder coating and surface defect feature recognition system of printed parts. Through the above-mentioned monitoring system, the parameters of the SLM forming process, such as temperature, air flow, vibration, powder coati...

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Abstract

The invention provides an SLM forming process parameter monitoring system. The system mainly comprises a laser power adjusting and scanning system, a powder feeding and spreading movement system and a forming bottom plate vertical movement system. The device is characterized by further comprising a workpiece surface temperature field distribution real-time measuring and adjusting system, a laser sintering protection airflow measuring and adjusting system, a forming process optical signal monitoring system, a forming equipment movement system vibration monitoring system and a powder laying and printing part surface defect feature recognition system. By means of the monitoring system, the SLM forming process parameters such as temperature, airflow, vibration, powder laying quality and formed workpiece surface quality are monitored in real time and fed back, and a theoretical basis is provided for adjustment of printing parameters.

Description

technical field [0001] The invention relates to the field of 3D printing monitoring, in particular to a monitoring and feedback system for SLM molding process parameters. Background technique [0002] The metal 3D printing additive manufacturing method scans the molten powder layer by layer through a high-energy heat source, accumulates layer by layer, and directly forms a three-dimensional component of complex shape freely. Currently the most representative metal 3D printing technologies are electron beam selective melting (EBM) and laser selective melting (SLM). [0003] Laser selective melting technology (SLM) spreads the metal powder evenly on the molding platform in advance according to the set thickness, controls the laser beam to irradiate the preheated powder, and then the laser selectively melts the metal powder according to the two-dimensional cross-sectional profile, The melt channel is formed to realize the metallurgical bonding between the layers. [0004] Com...

Claims

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Application Information

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IPC IPC(8): B22F12/90B22F10/28B22F10/85B33Y50/02
CPCB22F12/90B22F10/28B22F10/85B33Y50/02Y02P10/25
Inventor 郑晓峰周纯江黄金永祝勇仁顾盛挺方超
Owner 浙江机电职业技术学院