| Ders Adı | Kodu | Yarıyıl | T+U Saat | Kredi | AKTS |
|---|---|---|---|---|---|
| Desıgn and Metallurgy Of Welded Joınts | CMM 518 | 0 | 3 + 0 | 3 | 6 |
| Ön Koşul Dersleri | |
| Önerilen Seçmeli Dersler | |
| Dersin Dili | İngilizce |
| Dersin Seviyesi | YUKSEK_LISANS |
| Dersin Türü | Seçmeli |
| Dersin Koordinatörü | Prof.Dr. MEHMET FIRAT |
| Dersi Verenler | |
| Dersin Yardımcıları | |
| Dersin Kategorisi | Diğer |
| Dersin Amacı | Kaynak hataları . Kaynaklı bağlantıların fiyat analizi. Kaynakta çarpılmaların bilgisayarla tahmini. Kalıntı gerilmelerin tahmini. Tahribatlı ve tahribatsız kaynaklı bağlantıların kontrolü. Kaynak metalurjisi. Kaynak otomasyonu. Kaynakta ısıl dağılım ve bilgisayarla similasyonu. Kaynakta katılaşma. Faz dönüşümü. Kaynak mikroyapılarının tahmini. |
| Dersin İçeriği | Weld defects. Cost analysis of welded joints. Prediction and control of distortion. Residual stresses: Destructive and non destructive testing of welds. Weldability tests. Weldability of metals. Welding metallurgy. Automation in welding. The absorption of nitrogen and hydrogen gases in the weld metal. The chemical composition of weld. The weld thermal cycle, heat flow equations. The thermal cycle of the base metal and weld metal. Weld simulation. Residual stresses in welds. Numerical methods of estimating residual stresses in welds. Characteristics weld solidification. Geometry of weld melt. Crystal growth and segregation during the welding. Phase transformation during cooling of the weld metal. Predicting the microstructure and properties of weld metals. The microstructure and properties of heat affected zone (HAZ). |
| # | Ders Öğrenme Çıktıları | Öğretim Yöntemleri | Ölçme Yöntemleri |
|---|---|---|---|
| 1 | To be able to distinguish the different regions of a fusion weld in common engineering alloys | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 2 | To be able to distinguish the fundamental concepts of solidification under equilibrium and non equilibrium conditions and the characteristics of weld solidification and define the geometry of weld melt | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 3 | To be able to evaluate the absorption of nitrogen and hydrogen gases in the weld metal | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 4 | To be able to evaluate the various mechanisms by which a partially melted zone forms in fusion welds | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 5 | To be able to compose the grain growth mechanism in weld region and which factors can be affected the grain growth in common engineering alloys | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 6 | To be able to compose the grain growth mechanism in weld region and which factors can be affected the grain growth in common engineering alloys | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 7 | To be able to calculate the weld cooling time | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 8 | To be able to evaluate how to use continuous cooling time (CCT) and time temperature transformation (TTT) diagrams for the welding of steels | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 9 | To be able to evaluate the micro hardness distributions of weld regions | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 10 | To be able to estimate the various types of cracking associated with fusion welds, the basic principles of weld solidification cracking and the mechanisms proposed to explain this form of cracking | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| 11 | To be able to judge how weldability tests can be used to quantify cracking susceptibility | Anlatım, Gösteri, | Sınav , Sözlü Sınav, Ödev, |
| Hafta | Ders Konuları | Ön Hazırlık |
|---|---|---|
| 1 | Common weld defects like weld cracks, LOP, LOF, porosity, blow holes etc., remedies and control, | |
| 2 | Welding design and welding symbols. | |
| 3 | Costing factors of welding jobs- fabrication cost, material cost, preparation cost, finishing cost, overhead cost etc., economy in preparation and welding a job, labour accomplishment factor, cost calculation of welded jobs. | |
| 4 | Calculation of longitudinal contraction, transverse contraction, angular contraction due to single weld pass, control of welded distortion, and calculation of shrinkage. | |
| 5 | Introduction, types, effect of thermal stresses, control of residual welding stresses. | |
| 6 | Destructive tests, equipment required and test piece geometry for tensile test, bend test, impact test, hardness test, brittle and fatigue failure tests, | |
| 7 | Non destructive tests for welds:-dye penetrate inspection, magnetic particle inspection etc. | |
| 8 | Welding techniques, preparation of joints and electrode types for gray cast iron welding, | |
| 9 | To be able to evaluate how to use continuous cooling time (CCT) and time temperature transformation (TTT) diagrams for the welding of steels | |
| 10 | To be able to estimate the various types of cracking associated with fusion welds, the basic principles of weld solidification cracking and the mechanisms proposed to explain this form of cracking | |
| 11 | Titanium and its alloys. Aluminium and its alloys welding Welding of Stainless steels | |
| 12 | Thermal effect of welding on parent metal, structure of fusion welds, effect of cooling rate, | |
| 13 | Weld metal solidification and heat affected zone. | |
| 14 | Introduction and concept, classification of welding automation, economics of welding automation. |
| Kaynaklar | |
|---|---|
| Ders Notu | 1. Modern welding technology:- Carry H. B. (PH). |
| Ders Kaynakları | 2. Welding technology: - A. C. Devis 3. Welding and welding Technology: - Little (TMH) 4. Welding technology: - R. S. Parmar 5. AWS- welding handbook (IV ? VI) Edition 6. Elements of machine design: - Pandya and Shah |
| Değerlendirme Sistemi | |
|---|---|
| Yarıyıl Çalışmaları | Katkı Oranı |
| 1. Ara Sınav | 50 |
| 1. Ödev | 15 |
| 2. Ödev | 15 |
| 1. Performans Görevi (Seminer) | 20 |
| Toplam | 100 |
| 1. Yıl İçinin Başarıya | 60 |
| 1. Final | 40 |
| Toplam | 100 |
| AKTS - İş Yükü Etkinlik | Sayı | Süre (Saat) | Toplam İş Yükü (Saat) |
|---|---|---|---|
| Ders Süresi (Sınav haftası dahildir: 16x toplam ders saati) | 16 | 3 | 48 |
| Sınıf Dışı Ders Çalışma Süresi(Ön çalışma, pekiştirme) | 16 | 3 | 48 |
| Ara Sınav | 1 | 1 | 1 |
| Ödev | 2 | 15 | 30 |
| Performans Görevi (Seminer) | 1 | 10 | 10 |
| Final | 1 | 15 | 15 |
| Toplam İş Yükü | 152 | ||
| Toplam İş Yükü / 25 (Saat) | 6,08 | ||
| Dersin AKTS Kredisi | 6 | ||