Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Đặc tính lưu biến của chất lỏng dày lên hỗ trợ trường từ và quá trình đánh bóng hiệu quả cao bề mặt cầu của gốm ZrO2
Tóm tắt
Công nghệ đánh bóng dày lên do cắt sử dụng chất lỏng đánh bóng không Newton là một phương pháp đánh bóng chi phí thấp và ít gây hư hại cho gia công siêu chính xác các bề mặt cong phức tạp. Tuy nhiên, hiệu suất đánh bóng thấp và độ nhớt khó kiểm soát của các chất lỏng đánh bóng dày lên do cắt truyền thống đã hạn chế đáng kể ứng dụng thực tiễn của chúng. Trong nghiên cứu này, một loại chất lỏng đánh bóng dày lên do cắt hỗ trợ trường từ yếu (WMFA-STPF) mới gồm các hạt sắt carbonyl, đã được phát triển, sử dụng hiệu ứng quay từ yếu để thúc đẩy quá trình dày lên do cắt, và các đặc tính lưu biến của nó đã được nghiên cứu. Kết quả thu được cho thấy WMFA-STPF thể hiện độ trơn tru tốt ở tốc độ cắt thấp và đặc tính dày lên được cải thiện trong khoảng tốc độ cắt làm việc. Để xác minh khả năng đánh bóng hiệu quả cao, chất lượng cao và đồng nhất của công nghệ WMFA-STP áp dụng cho bề mặt cầu của sản phẩm gốm zirconia, các thí nghiệm đánh bóng so sánh đã được thực hiện. Sau 75 phút đánh bóng, hư hại bề mặt đã được giảm thiểu hiệu quả; chất lượng và tính đồng nhất của bề mặt đã được cải thiện đáng kể; và tốc độ loại bỏ vật liệu tăng 156% lên tới 7,82 μm/h. Do đó, phương pháp WMFA-STP có thể được sử dụng thành công cho việc đánh bóng hiệu quả cao, chất lượng cao của các loại gốm cứng và giòn.
Từ khóa
#đặc tính lưu biến #chất lỏng đánh bóng #trường từ yếu #đánh bóng hiệu quả cao #gốm ZrO2Tài liệu tham khảo
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