;Abstract Key words: solution heat treatment, aging heat treatment, Temperature Uniformity Survey (TUS), System Accuracy Test (SAT) This thesis aims to design and manufacture a heat-treatment furnance for massively producing aluminum alloy plates that can meet the validation of heat-treatment specificiations to qualify as an aircraft material supplier. The focus of the heat treatment specifications is mainly on the used instruments, process conditions, and product inspections must meet the NADCAP specifications. Its main equipments are a solid solution heat treatment furnace and an aging heat treatment furnace. The temperature uniformity (TUS) and system accuracy test (SAT) of the furnaces must satisfy with all requirements of a Class 2 Furnace and the entire manufacturing processes and products are need to fulfill criteria for aircraft applicaitons. The process for the development of a qualified heat-treatment furnace is as follows: (1) confirm the requirements of customer delivery and specification; (2) design the manufacturing process for aluminum alloy plate; (3) comprehend capacity status of heat treatment engineering; (4) achieve the purpose of solid solution heat treatment (T4) of aluminum plate; (5) meet the certification standards of heat treatment furnace for aircraft products; (6) meet the requirements of solution heat treatment furnace facilities; (7) design of facilities required to meet solution heat treatment furnace specifications; (8) understand the purpose of aging heat treatment (T6); (9) implement the specifications of aging heat treatment furnace facilities; (10) design facilities meeting all the requirements of an aging heat treatment furnace. In addition to the main processes, other relevant quality assurance processes and support processes must also meet the requirements of the specification. Besides, the process parameters should be the most suitable conditions, which is the design requirement for a better heat treatment furnace.
