TỐI ƯU HÓA THÔNG SỐ CÔNG NGHỆ CỦA QUÁ TRÌNH LĂN ÉP KIM CƯƠNG VỚI HỆ THỐNG BÔI TRƠN LÀM NGUỘI TÍCH HỢP

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Tác giả: Xuan Ba Le, Trung Thanh Nguyen, Long Hai Pham

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học & Công nghệ - Trường Đại học Công nghiệp Hà Nội, 2022

Mô tả vật lý: tr.56

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ID: 337462

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Diamond burnishing is an effective finishing process to enhance the surface quality andproduction rate of machined components. The purpose of this investigation is to select the optimalprocess parameters, including the spindle speed (S), feed rate (f), and burnishing depth (D) of thehybrid cooling-lubrication system-based diamond burnishing process for decreasing the averageroughness (AR) and improving Vickers hardness (VH). The design of experiment entitled TaguchiL16 is applied to perform trials. The principal component analysis (PCA) is employed to compute theweight values of all responses. The combined compromise solution (CCS) is utilized to select thebest optimal solution. The results indicated that optimal outcomes of the S, D, and f were 630RPM,0.10mm, and 0.04mm/rev., respectively. The AR was decreased by 56.0%, while the VH wasincreased by 16.8% at the optimal solution. The proposed approach comprising the Taguchi, PCA,and CCS could be considered as a powerful technique to solve complex optimizing problems for thediamond burnishing process.Lăn ép kim cương là một quá trình gia công tinh hiệu quả để nâng cao chất lượng bề mặt vànăng suất gia công. Mục đích của nghiên cứu này là để chọn các thông số công nghệ tối ưu, baogồm tốc độ trục chính (S), tốc độ tiến dao (f) và chiều sâu lăn (D) của quá trình lăn ép kim cươngdựa trên hệ thống bôi trơn-làm nguội tích hợp để giảm độ nhám trung bình (AR) và cải thiện độcứng Vickers (VH). Quá trình thực nghiệm được tiến hành dựa trên quy hoạch Taguchi L16. Phươngpháp phân tích thành phần (PCA) được sử dụng để tính toán các giá trị trọng số của các hàm mụctiêu. Giải pháp thỏa hiệp kết hợp (CCS) được sử dụng để chọn giải pháp tối ưu tốt nhất. Kết quả tốiưu của S, D và f lần lượt là 630RPM, 0,10mm và 0,04mm/vòng. Độ nhám trung bình đã giảm56,0%, trong khi độ cứng Vickers được tăng lên 16,8% tại giá trị tối ưu. Cách tiếp cận được đề xuấtbao gồm Taguchi, PCA và CCS có thể được coi là một phương pháp hiệu quả để giải quyết vấn đề tốiưu hóa phức tạp cho quá trình đánh bóng kim cương.

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