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Work Item

ASTM WK92805

New Practice for Additive manufacturing — Data — Data capturing and structure for PBF-LB/M machine log

1. Scope
1 Scope This document specifies the uniform structure of the machine log file for PBF LB/M machine operations, aimed at facilitating further processing. It is confined to the data provided by a PBF-LB/M machine during or after the production process. Data from additional monitoring systems like Melt Pool Monitoring or thermographic cameras is excluded. The primary considerations applicable to machine log capturing, provision via Internet of Things (IoT) interfaces, and structure are described. Furthermore, the minimum necessary machine data and a standard structure for the output are given. This document is intended for users and providers of additive manufacturing systems, Quality Assurance (QA), and associated software systems. It is applicable wherever PBF LB/M processes are used. While specific details directly relate to PBF-LB/M, generalized machine log requirements can be related to any AM process.
Keywords
AM, Data
Rationale

Powder Bed Fusion with Laser Beam of Metals (PBF LB/M) is a representative of an additive manufacturing (AM) process. The operations of the PBF LB/M machine described by sensor data, the Programmable Logic Control (PLC) status, the process state, and the Machine Control Software (MCSW) output should be tracked via a standardized machine log. The captured data is essential for process and quality control. Due to a lack of standards, each machine vendor produces machine logs in a different way with varying content. The diversity of methods of provision complicate access to this data and its further processing. The use of additional software and even hardware by the machine user is mandatory to identify and obtain critical process data in a usable form. This document is intended as a guideline for a harmonized structure of PBF LB/M machine log files. It also supports the data archiving as requested for additive manufacturing processes by ISO/ASTM 52920. A uniform structure of the machine log file would aid users in capturing data packages from ISO/ASTM DIS 52951, simplifying process data analysis and quality assurance conclusions. It also would enhance the comparability of different machines. The purposed data structure can serve as a basis for data exchange between the customer and manufacturer, as described in ISO/ASTM 52901.

Details

Developed by Subcommittee: F42.08

Committee: F42

Staff Manager: Pat Picariello

Work Item Status

Date Initiated: 11-11-2024

Technical Contact: Martin Epperlein

Item: 001

Ballot: F42.08 (24-01)

Status: In Balloting

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