TAILIEUCHUNG - Cutting Fluids‘ Everything flows and nothing_1

Thảo luận về phát triển nhà nước-of-the-nghệ thuật để quản lý căng thẳng dòng chảy và ma sát trong gia công cơ khí và bao gồm thông tin chi tiết về phát triển công cụ tráng, máy tốc độ cao, vật liệu làm việc khác thường, và bộ vi xử lý. | 8 Cutting Fluids Everything flows and nothing abides HERACLITUS 540 - 480 BC An early Metaphysician from Ephesus Asia Minor in On Nature 382 Chapter 8 Historical Development of Cutting Fluids General speaking metalworking mass production techniques can be traced back to the 16th century but it was really not until the late 18th century that engineers in the industrialised countries paid close attention to increasing production due to the vast rise in their populations and significant industrial growth. In Europe at that time two countries where important areas of applied machining and fluid research were being pursued was in France where the machining of metals was being investigated and developed into a science - specifically in terms of the effects of tool feeding and lubrication and its affect on surface finish also in the mid-19th century in England where the effects of water as a coolant to enhance tool performance was also studied. Thus as these research activities progressed complementary advances were taking place into the study of tool materials their heat treatment and in particular tool hardening techniques. As has happened on many occasions in the past considerable advances took place as a result of the enormous demands for armament manufacturers and their production needs during times of war significantly adding advancements and refinements to the machine tools tooling as well as for lubricants. As these research programmes developed it soon became clear that for cutting fluids while water may have had the optimum specific heat capacity of all available fluids it brought real problems due to corrosion of the machined components and to the exposed surfaces of machine tools. Frequently such related losses far outweighed the benefits of increased production throughput and the improvement in tool life that it imparted to the overall manufacturing process. A simple solution was at hand in the form of corrosion inhibition via the use of animal oils fatty

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
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.