TAILIEUCHUNG - Composites Manufacturing - Materials, Product, and Process Engineering Part 10

Tham khảo tài liệu 'composites manufacturing - materials, product, and process engineering part 10', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | TABLE Part Cycle Time for Various Manufacturing Processes Manufacturing Process Part Cycle Time s Compression molding of GMT 30-60 Injection molding 20-60 Compression molding of SMC 80-150 Blow molding 60-140 SRIM 120-240 FIGURE Automotive rear bumper beam. Courtesy of Azdel Inc. This is the only thermoplastic manufacturing process used in industry for making structural thermoplastic composite parts. The process is used for making bumper beams dashboards kneebolsters and other automotive structural parts. Figure shows an automotive rear bumper beam having 5-mph capability. A painted kneebolster with molded-in texture to provide a Class A interior surface and heavy-truck dashboard are shown in Figure . Figure shows an automotive seat back with part thickness less than 2 mm. Cut-outs are recycled for reuse. Consumer items such as office chairs Figure and helmets are also made using this process. Basic Raw Materials The raw material for thermoplastic compression molding process is GMT glass mat thermoplastics . GMT is primarily made from polypropylene resin and continuous but randomly oriented glass fibers. Melt-impregnated GMT is the most common material form. Powder-impregnated discontinuous fiber reinforced GMT is also used. A sheet of fiber glass impregnated with polypropylene is used in this process. These materials are available in pre-cut pre-weighed pieces of sheet composite materials called blanks for processing. 2002 by CRC Press LLC TABLE Part Cycle Time for Various Manufacturing Processes Manufacturing Process Part Cycle Time s Compression molding of GMT 30-60 Injection molding 20-60 Compression molding of SMC 80-150 Blow molding 60-140 SRIM 120-240 FIGURE Automotive rear bumper beam. Courtesy of Azdel Inc. This is the only thermoplastic manufacturing process used in industry for making structural thermoplastic composite parts. The process is used for making bumper beams dashboards kneebolsters and other .

TỪ KHÓA LIÊN QUAN
TÀI LIỆU MỚI ĐĂNG
170    253    4    29-03-2024
19    220    0    29-03-2024
20    189    2    29-03-2024
23    147    0    29-03-2024
37    146    0    29-03-2024
37    129    0    29-03-2024
24    127    0    29-03-2024
5    118    0    29-03-2024
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.