Ứng dụng phương pháp taguchi và quan hệ mờ xám (fgra) phân tích ảnh hưởng của chế độ cắt tới mòn dao khi phay cao tốc thép cứng

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Tác giả: Khắc Trung Chu, Tiến Dũng Hoàng, Thế Hưng Lê, Văn Bổng Phạm

Ngôn ngữ: vie

Ký hiệu phân loại: 621.9 Tools

Thông tin xuất bản: Khoa học và Công nghệ (Đại học Công nghiệp Hà Nội), 2022

Mô tả vật lý: 63-57

Bộ sưu tập: Metadata

ID: 500622

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Analysis of the influence of cutting parameters on tool wear during high-speed milling is a highly effective method to improve tool life and thereby reduce machining costs. To study the influence of cutting parameters on tool wear during high-speed milling, experimental models according to Taguchi L9 were established in combination with the fuzzy grey relationship analysis (FGRA) algorithm presented in this study. The results of ANOVA analysis show that there is a significant difference between the dry compared to the wet milling process, when milling with a cooling fluid, the option for the smallest flank wear corresponding to depth of cut t = 0.1mm, feed rate S = 955 (mm/min), cutting speed V = 300 (m/min), while dry milling corresponds with parameters depth of cut t = 0.3mm, feed rate S = 955 (mm/min), cutting speed V = 300 (m/min). The results of the FGRA analysis show that when high-speed milling of hardened steel in wet milling and dry milling processes both show the depth of cut has the most influence on tool wear, followed by cutting speed and lastly the feed rate has the smallest effect on tool wearPhân tích ảnh hưởng chế độ cắt tới mòn dụng cụ cắt khi phay cao tốc là một phương pháp hiệu quả nhằm nâng cao tuổi bền dụng cụ cắt qua đó giảm giá thành gia công. Để nghiên cứu ảnh hưởng của chế độ cắt tới mòn dao khi phay cao tốc, mô hình thực nghiệm theo Taguchi L9 được thiết lập kết hợp với thuật toán phân tích mối quan hệ mờ xám được trình bày trong bài viết này. Kết quả phân tích ANOVA cho thấy quá trình phay khô so với phay ướt có sự khác biệt đáng kể, khi phay ướt phương án cho lượng mòn mặt sau nhỏ nhất tương ứng với chiều sâu cắt t = 0,1mm, bước tiến dao S = 955 (mm/phút), vận tốc cắt V = 300 (m/phút), trong khi phay khô tương ứng với các thông số công nghệ chiều sâu cắt t = 0,3mm, bước tiến dao S = 955 (mm/phút), vận tốc cắt V = 300 (m/phút). Kết quả phân tích mờ xám cho thấy khi phay cao tốc vật liệu có độ cứng cao cả trong quá trình phay ướt và phay khô chiều sâu cắt có ảnh hưởng nhiều nhất tới mòn dụng cụ cắt, tiếp theo là vận tốc cắt và cuối cùng lượng tiến dao có ảnh hưởng nhỏ nhất tới mòn dụng cụ.

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