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عدد المساهمات : 18660 التقييم : 34550 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| موضوع: مشروع تخرج بعنوان Objectives of Heat Treatments السبت 21 أغسطس 2010, 9:33 pm | |
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أخوانى فى الله أحضرت لكم كتاب مشروع تخرج بعنوان Objectives of Heat Treatments Graduation Project
ويتناول الموضوعات الأتية :
TABLE OF CONTENT 1. INTRODUCTION 1 2. OBJECTIVES OF HEAT TREATMENT 2 2.1. HEAT TREATMENT PROCESSES 2 2.1.1. Full Annealing 2 2.1.2. Spheroidizing 2 2.1.3. Stress Relief Annealing: 3 2.2. NORMALIZING 4 2.3. TEMPERING PROCESSES: 5 2.3.1. Conventional Temper Process 5 2.3.2. Austempering: 5 2.3.3. Martempering: 5 2.4. QUENCH MEDIA 7 2.4.1Water: 7 2.4.2. Salt Water: 7 2.4.3. Oil: 7 2.4.4. Polymer quench: 7 2.4.5. Cryogenic Quench: 7 3. HARDNESS TESTING 8 3.1. HARDNESS MEASUREMENT 8 3.2. HARDNESS MEASUREMENT METHODS 9 3.2.1. ROCKWELL HARDNESS 9 3.2.2. BRINELL HARDNESS 10 3.2.3. VICKERS HARDNESS (Micro and Macro hardness) and Knoop 10 3.2.3.1. Vickers Test 11 3.2.3.2. Knoop Test 11 3.3. HOW TO READ A HARDNESS NUMBER 12 4. DESIGNATION OF STEEL 13 4.1. GOST (RUSSIAN STANDARD) 13 4.2. AISI (AMERICAN IRON & STEEL INSTITUTE) 15 4.3. DIN 20 5. SURFACE HARDENING OF STEEL 22 5.1. HIGH FREQUENCY INDUCTION HARDENING 22 5.2. HARDENING WITH ELECTRIC CONTACT RESISTANCE HEATING 27 5.3. HARDENING WITH ELECTROLYTIC HEATING 28 5.4. FLAME HARDENING 29
6. CASE HARDENING OF STEEL 32 6.1. CYANIDING & CARBONITRIDING OF STEEL 32 6.1.2. Liquid cyaniding 32 6.1.3. Carbonitriding: 35 6.1.4. High temperature Carbonitriding 36 6.2. CARBURIZING 38 6.2.1. pack carburizing: 38 6.2.2. Gas carburized: 39 6.2.3. Liquid carburizing: 40 6.3. NITRIDING 41 7. LITERATURE REVIEW 46 8. SYSTEM DESIGN 49 8.1. SYSTEM ASSEMBLY 49 8.2. THE MAIN COMPONENTS: 50 8.3. STEEL TABLE: 52 8.4. THE ELECTRODE AND ELECTRODE HOLDER 53 8.5. WORKPIECE HOLDING MECHANISM: 54 8.5.1 Workpiece holder 54 8.5.2 Male guide 56 8.6. WORKPIECE DRIVING SCREW 57 8.6.1. WORKPIECE DRIVING NUT 57 8.7. BRIDGE WITH FEMALE SLOT (GUIDE WAY) 58 8.8. ELECTRODE DRIVING MECHANISM 59 8.9. WORKPIECE 60 8.10. BATH (ELECTROLYTE CONTAINER) 60 9. CHARACTERISTICS OF POWER SUPPLY 61 9.1. RELATION BETWEEN GAP AND CURRENT AT CONSTANT VOLTAGE 62 9.1. RELATION BETWEEN CURRENT AND VOLTAGE AT CONSTANT GAP 73 10. EXPERIMENT 80 10.1. PROCESS VARIABLES 80 10.2. PROCESS SPECIFICATIONS 80 11. RESULTS AND CONCLUSIONS 81 11.1. PULSE CURRENT CONDITION 81 11.2. DIRECT CURRENT CONDITION 81 10. RECOMMENDATIONS 82
Table of Figure
Figure (1) microscopic structure before and after Spheroidizing 3 Figure (2) Annealing and Spheroidizing Temperatures 3 Figure (3) Normalizing temperatures for hypoeutectoid and hypereutectoid steels. 4 Figure (4) Austempering process. 5 Figure (5) Martempering process. 6 Figure (6) nano-indentation machines 8 Figure (7) Rockwell test 9 Figure (8) Brinell hardness method 10 Figure (9) Vickers Test 11 Figure (10) Knoop Test 11 Figure (11) principle of high frequency induction heating 22 Figure (12) hardening with electric contact heating 27 Figure (13) electrolytic heating (schematic diagram) 28 Figure (14) Relation between depth of hardening and holding time 39 Figure (15) whole system 49 Figure (16) main components 50 Figure (17) Table 52 Figure (18) Guiding nut 53 Figure (19) the electrode plate 53 Figure (20) Electrode holding bar 53 Figure (21) Fastener 54 Figure (22) Alloy steel rod 54 Figure (23) Bakelite box 55 Figure (24) Steel fasteners 55 Figure (25) upper part 56 Figure (26) lower part 56 Figure (27) Screw 57 Figure (28) Driving Nut 57 Figure (29) Legs 58 Figure (30) bridge 58 Figure (31) Bridge base plate 58 Figure (32) Fasteners 58 Figure (33) Ball Bearing 59 Figure (34) supports 59 Figure (35) Handle 59 Figure (36) Work piece 60 Figure (37) Bath 60 Figure (38) Relation between gap and current at constant voltage at 50 V 62 Figure (39) Relation between gap and current at constant voltage at 100 V 63 Figure (40) Relation between gap and current at constant voltage at 150 V 64 Figure (41) Relation between gap and current at constant voltage at 200 V 65 Figure (42) Relation between gap and current at constant voltage at 240 V 66 Figure (43) Relation between gap and current at constant voltage at 260 V 67 Figure (44) Relation between gap and current at constant voltage at 280 V 68 Figure (45) Relation between gap and DC current at different voltage 71 Figure (46) Relation between gap and pulsed current at different voltage 72 Figure (47) Relation between current and voltage at constant gap at 50 mm 73 Figure (48) Relation between current and voltage at constant gap at 100 mm 74 Figure (49) Relation between current and voltage at constant gap 75 Figure (50) Relation between current and voltage at constant gap 77 Figure (51) Relation between current and voltage at different gaps 79
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Admin مدير المنتدى
عدد المساهمات : 18660 التقييم : 34550 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
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Admin مدير المنتدى
عدد المساهمات : 18660 التقييم : 34550 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
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