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所在平台: Udemy |
课程主页: https://www.udemy.com/course/american-welding-society-certified-welding-inspector-cwi-f/
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课程名称：焊接冶金学-1，针对认证焊接检查员 课程概述：该课程旨在帮助考生为认证焊接检查员（CWI）考试做好准备。CWI考试包括三个部分：第A部分 - 基础知识、第B部分 - 实践测试、第C部分 - 规范书应用。A部分是闭卷考试，共150道题，内容涉及焊接基础知识、术语和定义、焊接工艺、无损检测、程序、符号、计算、安全实践以及CWI的职责和责任。B部分是实践操作测试，旨在评估视觉识别焊接缺陷的能力以及对焊接件的接受或拒绝判断。C部分是开卷测试，主要考核考生对选定规范应用的熟悉程度和能力。A、B、C部分及格线均为72%。 课程内容包括： - 报告的准备 - 各种焊接工艺的全面知识与理解，例如：SAW、PAW、RW、SMAW、SW、FCAW、GTAW、OFW、ESW、GMAW。 - 热喷涂、焊接、机械切割、热切割/切槽、钎焊/钎焊 - 焊接冶金学的相关内容：金属结构、晶体固体的形成、BCC、FCC、HCP结构、晶界的无序、替代和间隙固溶体、相变（临界点）、金属的物理结构、铜银相图、沉淀硬化合金的焊接、分散强化、特定合金家族的焊接、铝合金、可热处理等级的焊接、钢的基本冶金、钢的化学元素、纯铁和钢的相变、铁-碳平衡图、钢的热处理、冷却速率对相变的影响、等温相变或TTT图、焊缝及其受热区的热特性、焊接过程中的温度变化、影响焊接温度变化的因素。 - 各种无损检测的基本原理：VT、MT、UT、PT、RT、LT - 质量程序和质量审核/监视的知识 - 焊接冶金的基本原则及焊接符号与工程图纸的理解 - 基材和填充金属的合规性 - 填充金属的存储与处理 - 检查记录的合规性 - 文档合规性的验证 - 基材与填充金属的兼容性 - 文档结果的认证与合规性 - 程序资格记录的合规性 - 焊接程序的合规性 - NDE程序的合规性 - 国际标准下的工作场所安全要求 通过该课程，考生将获得充分的知识储备，能够顺利通过CWI考试并在焊接行业中更好地执行职责。
The CWI exam consists of three partsPart A - FundamentalsPart B - Practical,Part C - Code Book Applications.Part A is a closed-book exam that consists of 150 questions on the welding fundamentals, terms and definitions, welding processes, nondestructive examination, procedures, symbols, calculations, safety practices, and duties and responsibilities of a CWI.Part B is a practical hands-on test to find the ability to visually identify welding discontinuities and to determine the acceptance or rejection of a weld.Part C is an open book test of Code application to evaluate the applicant's familiarity and ability with a selected code application.The pass marks for Part- A, B & C is 72%You can refer to the full details of AWS Certification and Qualification Standards in the following documents available at free of cost on the AWS website:QC1:2016-AMD1 - Specification for AWS Certification of Welding InspectorsB5.1:2013-AMD1 - Specification for the Qualification of Welding Inspectors(Study the documents and be prepared well to answer any question from the document.)In this course, the candidate will learn the following :Preparation of reportsComplete knowledge and understanding of the following welding processes:SAW, PAW, RW, SMAW, SW, FCAW, GTAW, OFW, ESW, GMAW.Thermal Spraying SolderingMechanical Cutting Thermal Cutting/GougingBrazing/Braze WeldingWelding Metallurgy- part-1/2/3/4Structure of Metals, Formation of Crystalline Solids, BCC, FCC, HCP Structures, Disarray of Grain boundaries, Substitutional and Interstitial solid solutions, Phase Transformation (critical points), Physical Structure of metals, Copper Silver phase Diagram, Welding the precipitation -hardening alloys, Dispersion Strengthening, Welding of Specific alloy Families, Aluminum alloys, Welding the heat treatable grades, Basic Metallurgy of steels, Chemical elements of Steels, Phase Transformation in Pure Iron, and Steel, The Iron -Iron Carbon Equilibrium Diagram, Heat Treatment of Steels, Effect of Cooling Rate on Transformation, Isothermal Transformation or TTT Diagram, Thermal characteristics of welds and Heat Affected Zone, Change of Temperature during welding, Factors influencing temperature changes in weldThe fundamental principles of the following ND Tests:VT, MT, UT, PT, RT, LTHe will acquire knowledge of quality procedures and Quality audits/surveillance.Knowledge and understanding of the fundamentals of welding metallurgyKnowledge and understanding of all the welding symbols and engineering drawings.Base material complianceFiller metal complianceFiller metal storage, handlingInspection records complianceVerification of proper documentation complianceBase material and filler metal compatibilityCertification of documented results and complianceProcedure qualification records complianceWelding procedure complianceNDE procedures complianceApplicable safety requirements in the workplace as per the International Standards
