JB/T 54454-1999

Machine tool manufacturers use this standard to grade the quality of their NC low-speed wire EDM machines. Quality inspectors and customers rely on it to determine whether a machine meets qualified, first-class, or premium product levels. By specifying requirements for accuracy, reliability, safety, and other factors, this standard ensures consistent product quality and drives technological advancement in the industry.

机床制造企业使用本标准来对其生产的数控低速走丝电火花线切割机进行质量等级评定。质检人员和用户可依据本标准判断机床是否达到合格品、一等品或优等品的要求。该标准通过规定精度、可靠性、安全防护等多项指标，确保了机床产品的质量一致性，促进了行业技术水平的提升。

This standard specifies product quality grading requirements for NC low-speed wire electrical discharge machines with moving worktable and unidirectional wire electrode. It defines three quality grades: qualified, first-class, and premium. Evaluation covers final product inspection (general requirements, accuracy, performance, reliability/stability, life, safety, completeness, appearance, packaging), production process quality (materials/heat treatment, parts processing, assembly, rust prevention), and customer service/feedback. Accuracy requirements reference JB/T 5543, with specific criteria for accuracy margins, noise limits, rust prevention periods, and other indicators at each grade level.

本标准规定了数控低速走丝电火花线切割机的产品质量分等要求，适用于工作台移动式、线状电极单向运行的机床。标准将产品分为合格品、一等品和优等品三个等级，考核项目包括成品检验（一般要求、精度、工作性能、可靠性与稳定性、寿命、安全防护、配套性、外观和包装）、生产过程质量检查（材质及热处理、零件加工质量、装配质量和防锈）以及用户服务与信息反馈。精度要求参照JB/T 5543，并规定了不同等级下的精度储备量、噪声限值、防锈期限等具体指标。