MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH QUALITY TRAINING CAPSTONE PROJECT ELECTRONICS AND TELECOMMUNICATIONS ENGINEERING TECHNOLOGY THE SURVEY DAMPING ABILITY OF THE MILLING CUTTING TOOL WITH THE INVERTED CONXOL MODEL LECTURER: ME. Le Ba Tan STUDENT: TRAN CAO LONG NGUYEN ANH TU NGUYEN DINH HIEU S K L 01 0 8 4 5 Ho Chi Minh City, 2023 HCMC UNIVERCITY OF TECHNOLOGY AND EDUCATION FACULTY FOR HIGH QUALITY TRAINING GRADUATION THESIS THE SURVEY DAMPING ABILITY OF THE MILLING CUTTING TOOL WITH THE INVERTED CONXOL MODEL STUDENTS’ NAME & ID: Tran Cao Long – 18144035 Nguyen Anh Tu – 18144059 Nguyen Dinh Hieu – 18144017 ADVISOR: ME. Le Ba Tan HCM City, July, 2023 ii TABLE OF CONTENTS LIST OF FIGURES .vi LIST OF TABLES. xiii Chapter 1: OVERVIEW.
1 The urgency of the topic. 1 Published domestic and foreign research results. 2 Goal of the topic. 3 Tasks and range of the project.
3 Tasks of the project. 3 Range of the project. 4 Chapter 2: THEORETICAL BASIS. 5 Metal cutting theoretical foundations.
5 Characteristics and role of metal cutting. 5 The fundamental tool actions during cutting. 6 Feed movement and quantity. 7 Extra movement and cut depth.
7 Milling technology theoretical underpinnings. 7 A summary of milling processing techniques. 7 Milling tool types. 9 Technology capabilities for milling.
11 Machined part surface roughness. 12 The influence of surface roughness. 13 Criteria for evaluation. 15 iii Symbols and callouts for surface roughness on drawings.
18 Choosing the Surface Roughness. 22 Surface roughness factors. 22 Surface roughness generation method. 23 Surface roughness evaluation method.
23 Vibration during the cutting process. 23 Overview of cutting vibration. 23 Vibration types and causes. 23 Vibration reduction solution.
25 Creating an integrated dampening system for cutting tools. 27 An Overview of the Damping Cutting Tool. 27 Milling technology with dampers cutter handle. 35 ANN_GA method.
37 Chapter 3: EMPIRICAL STUDY OF THE EFFECT OF DAMPINGING CUTTER HANDLES ON DETAILED SURFACE GLOSS. 39 Length of cutter. 40 CNC machine VM750. 41 The meaning of the parameters:.
41 Investigate the influence of L on the surface gloss of the workpiece:. 42 Investigate the influence of l on the surface gloss of the workpiece:. 42 Investigate the influence of ∅ on the surface gloss of the workpiece:. 43 Investigate the influence of R on the surface gloss of the workpiece:.
43 Investigate the influence of d on the surface gloss of the workpiece:. 44 Investigate the influence of h on the surface gloss of the workpiece:. 44 iv Damping cutting tools and damping cores. 49 Cases for experimentation.
51 Experiments process and Results. 53 Measuring and comparing surface roughness results. 61 Chapter 4: VIBRATION ANALYSIS METRICS OF MILLING TOOL. 73 The peak, peak to peak and RMS values in vibration analysis.
73 Peak to peak value .2 Measuring equipment and working principle. 77 Conclusion on the vibration analysis metrics of milling tool. 80 Chap 5 CONCLUSION AND FURTHER RESEARCH DIRECTION .2 Further research direction. 85 v LIST OF FIGURES Figure 2.2: Basic movement of tool when milling.5: Cylindrical milling cutter.6: Angle milling cutter.7: Disc milling cutter.8: End milling cutter.9: Milling process capabilities.10: Types of undulations on the detailed surface.11: Effect on wear resistance.12: Effect on fatigue strength of parts.13: Effect on corrosion resistance.14: Effect on corrosion resistance.17: Surface roughness note definitions.18: How to Read Surface Texture Requirements.19: Texturing on contour lines that depict surfaces.20: Dimensional feature - surface texture required [11].21: Indication of geometrical tolerances [11] .22: cyclindrical feature extensions lines [11] .23: Surfaces with cyclindrical and prismatic symmetry [11] .24: Crop angle influences stability.25: Insert fragment types.26: Large teeth step cutting tools.27: Medium tooth step cutting tools.28: Small teeth step cutting tools.29: Face milling general guidelines.30: Forward milling and reverse milling.31: The cutting edge of inserts.32: Insert rake angle.33: Inserts fragment cut angle.34: Diagram for static problem.35: ANN_GA optimization method [17] .1: Recommended cutting condition of inserts .2: Length of tool holder and cutter.3: CNC machine VM750.4: Damping cutting tool .5: Insert APMT1135PDER parameters.7: Custom damping compliance holder .8: Damping cutting tool assembly .10: Mitutoyo SJ-201 roughness meter.11: Mitutoyo SJ-201 roughness meter.12: Definitions for parameters of damping compliance.13: Measuring Ra value.14: Results after measuring.15: Comparision of normal tool and damping compliance 1 to 4.16: Comparision of normal tool and damping compliance 5 to 8.17: Comparision of normal tool and damping compliance 9 to 12.18: Comparision of normal tool and damping compliance 9 to 12.19: Comparision of normal tool and damping compliance 17 to 20.20: Comparision of normal tool and damping compliance 21 to 25.21: Analyze Taguchi Design.23: Choosing response data.24: Main effect for means .25: Input and target variables .26: Neural Network/Data Manager .27: Import Input Data .28: Import Target Data.29: Create new neural network.30: Prepare data and function for new neural network.32: Neural network training regression.33: Fitness function code.34: Optimization setup in Matlab .35: ANN_GA method results .36: Comparison surface roughness of optimal damping tool and normal tool.1: Waveform chart of peak values .2: Waveform chart of peak to peak values .3: The formula of RMS values .4: Waveform chart of RMS values .5: Waveform chart of RMS values of velocity .6: Waveform chart of RMS values with critical level .7: Milling cutting tool deformation measurement model.8: Dynamox TCas vibration and temperature sensor .9: The chart of peak to peak values of acceleration on axial .10: The chart of peak to peak values of acceleration on radial .11: The chart of peak to peak values of acceleration on horizontal .12: The chart of peak to peak values of displacement on axial axis .13: The chart of peak to peak values of displacement on radial axis .14: The char of peak to peak values of displacement on horizontal axis 83 viii LIST OF TABLES Table 2.1: Surface roughness parameter values (ISO 12085:1996) [10] .2: Standard values of Ra and Rz.3: Surface roughness value according to the dimensional accuracy grade.2: Parameters of damping compliance when changing L variable value.3: Parameters of damping compliance when changing l variable value.4: Parameters of compliance when changing Ø variable value.5: Parameters of compliance when changing R variable value.6: Parameters of compliance when changing d variable value.7: Parameters of compliance when changing h variable value.8: Basic component of high-speed steel [18] .9: High-speed steel heat treatment [18] .10: Chemical compositions and mechanical properties of SS400 steel.11: All damping cases dimensions.12: Surface roughness for each cases.13: Average surface roughness of normal cuttin tool.14: Parameters and surface roughness of compliance 1 to 4.15: Parameters and surface roughness of compliance 5 to 8.16: Parameters and surface roughness of compliance 9 to 12.17: Parameters and surface roughness of compliance 13 to 16.18: Parameters and surface roughness of compliance 17 to 20.19: Parameters and surface roughness of compliance 13 to 16.20: Parameters of optimized damping cutting tool.21: Surface roughness of optimized damping tool and normal tool.
71 ix TRƯỜNG ĐẠI HỌC SƯ PHẠM KỸ THUẬT CỘNG HOÀ XÃ HỘI CHỦ NGHĨA TP. HCM VIỆT NAM KHOA ĐÀO TẠO CHẤT LƯỢNG CAO Độc lập - Tự do – Hạnh phúc NHIỆM VỤ ĐỒ ÁN TỐT NGHIỆP Học kỳ 2/ năm học 2023 Giảng viên hướng dẫn: ThS. Lê Bá Tân Sinh viên thực hiện: Trần Cao Long MSSV: 18144035 Điện thoại: 0974101422 Nguyễn Anh Tú MSSV: 18144059 Điện thoại: 0362619574 Nguyễn ĐÌnh Hiếu MSSV: 18144017 Điện thoại: 0335644970 1. Tên đề tài: Khảo sát khả năng giảm chấn của cán dao phay với mô hình conxol gắn ngược 2.
Các số liệu, tài liệu ban đầu: - Sử dụng phần mềm MATLAB cho tối ưu hóa - Sử dụng dụng cụ đo độ nhám bề mặt - Sử dụng cán dao BAP300R C20-20-160-2T - Vật liệu phôi: SS400 3. Nội dung chính của đồ án: - Tổng quan về công nghệ phay và chất lượng bề mặt - Chế tạo mô hình cán dao phay - Lắp ráp thực hiện và đo lường độ bóng bề mặt - Tổng hợp số liệu và báo cáo 4. Các sản phẩm dự kiến - Mô hình thực tế - Báo cáo phân tích dữ liệu 5. Ngôn ngữ trình bày: Bản báo cáo: Tiếng Anh Tiếng Việt Trình bày bảo vệ: Tiếng Anh Tiếng Việt TRƯỞNG KHOA TRƯỞNG NGÀNH GIẢNG VIÊN HƯỚNG DẪN (Ký, ghi rõ họ tên) (Ký, ghi rõ họ tên) (Ký, ghi rõ họ tên) xi PREFACE Our forefathers have advised us to "drink water, recall the source," which is a reminder to always consider the conception and upbringing of our parents from conception to adulthood, from the beginning of time.
beneficial to the community and the family. I'd like to begin by thanking my parents for giving me life and raising me in a way that allowed me to develop into the person I am today. Without the help of others around them, no one can prosper in this world. I would not have had the knowledge required to finish my studies if it weren't for academics who are dedicated to instructing and sharing useful information.
after four years of study, a strong thesis is required for graduation. Our team would like to express its profound gratitude to Mr. Le Ba Tan for his guidance, support, and safety. He did not hesitate to take the time to revise and make ideas when I encountered difficulties when conducting the study so that I could complete this project as successfully as possible.
Next, we would like to extend our profound gratitude to Mr. Tran Minh The Uyen and Mr. Dang Minh Phung for giving the tools necessary for me to complete the experiment successfully. In order to complete the machining and testing procedure, our team would like to extend its heartfelt gratitude to Mr.
Nguyen Van Mang in the Vocational Practice workshop for supplying the equipment. Without mentioning the faculty office instructors who created the best environment for us to complete this project, it would be difficult to talk about it. Finally, we would like to extend our sincere gratitude to the companies who sponsored this project—911 Group, VPIC Company and G. So that you can share your expertise and encourage the next generation to contribute to your family and community, I wish you continuing good health, happiness, and youth.
Tran Cao Long Nguyen Anh Tu Nguyen Dinh Hieu xii ABSTRACT Within the confines of this topic, the group focuses on creating the damping tool structure, giving the parameters, and generating the damper. A collection of data is then produced by measuring the damper and using statistical software to examine the experimental results. Choosing the best tool and calculating actual and hypothetical error Design goal: Lower production costs while keeping enough design detail to create a tool holder that can smooth out milling cuts made using damper tools. The group's graduation project is: " THE SURVEY DAMPING ABILITY OF THE MILLING CUTTING TOOL WITH THE INVERTED CONXOL MODEL " using a damping tool during machining and then comparing the results with a normal tool, under the guidance of ME.
Le Ba Tan Project work: - Structural design of damping mechanism and milling cutter. - Provide a set of structural parameters by statistical model. - Crafting and experimenting. - Measure and analyze results.
- Test for error Implementing this project has improved the team's understanding of surface tolerances, material theory, applying mathematics to engineering models, knowledge of fundamental concepts and machine building technology, understanding of engineering mechanics, and practicing effective teamwork. Each team member will benefit greatly from this information in their future employment, and it will boost their confidence in the workplace. xiii Chapter 1: OVERVIEW The urgency of the topic. As we enter the fourth industrial revolution, the precision mechanical processing sector is required to meet ever-stricter accuracy standards while also maintaining high levels of efficiency and product quality.