标准编号：ISO 27547-1:2010
中文名称：塑料 运用无模技术制备热塑材料的试样 第1部分：一般原则及试样的激光烧结
英文名称：Plastics — Preparation of test specimens of thermoplastic materials using mouldless technologies — Part 1: General principles, and laser sintering of test specimens
发布日期：2010-09
标准范围
This part of ISO 27547 specifies the general principles of test-specimen preparation using mouldlesstechniques. Sometimes, these techniques are called “tool-less” methods. Common to all these techniques isthe fact that the specimens are produced layer by layer. The shape and dimensions of the specimens aredefined in terms of a numerical description using CAD techniques. This computer model of the specimen is“sliced” into layers by means of suitable software. The specimen-preparation process then builds up thespecimens automatically, layer by layer, using the computer model and a suitable computer-controlled lasersinteringmachine. The three software systems used (for CAD, slicing the specimen into layers and machinecontrol) may be independent systems interfacing separately with the machine or they may be integrated withthe machine.This part of ISO 27547 also specifies the general principles to be followed when test specimens ofthermoplastic materials are prepared by laser sintering. The laser-sintering process is used to preparespecimens layer-wise by sintering the particles of a thermoplastic powder using the energy of a laser beam.This part of ISO 27547 provides a basis for establishing reproducible sintering conditions. Its purpose is topromote uniformity in describing the main parameters of the sintering process and also to establish uniformpractice in reporting sintering conditions.The particular conditions required for reproducible preparation of test specimens which will give comparableresults will vary for each material used. These conditions shall be as given in the International Standard for therelevant material or shall be agreed upon between the interested parties.
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