INCONEL 718 LAZER DOLGU KAYNAĞINDA ÜRETİM PARAMETRELERİNİN GEOMETRİK ÖZELİKLERE ETKİSİNİN İNCELENMESİ

Öz

Lazer dolgu kaynağı sürecinde, kaplamanın geometrik özelliklerinin değerlendirilmesi öncelikli hedef olarak belirlenmiştir. Bu çalışma, tarama hızı, lazer gücü ve toz besleme hızı gibi üç temel proses parametresinin, AISI 1050 çelik alt tabaka üzerindeki Inconel 718 kaplamaların geometrik özellikleri üzerindeki etkilerini incelemeyi amaçlamaktadır. Bu amaçla, üç farklı lazer gücü, dört farklı tarama hızı ve dört farklı toz besleme hızında bir deney seti oluşturulmuş ve toplam 18 farklı deney numunesi üretilmiştir. Üretilen bu kaplamaların penetrasyon derinliği, kaplama yüksekliği, kaplama genişliği ve seyreltme oranı gibi çeşitli geometrik özellikleri analiz edilmiştir. Kaplama geometrisi üzerindeki proses parametrelerinin etkilerini kapsamlı bir şekilde değerlendirmek için varyans analizi (ANOVA) yapılmıştır. Analiz sonuçları, tarama hızının kaplama genişliği (%44) ve yüksekliği (%79) üzerinde en etkili faktör olduğunu ortaya koymaktadır. Lazer gücünün, alt tabakanın erime derinliği üzerinde %54 oranında etkili olduğu, toz akış hızının ise %35’lik bir etkiye sahip olduğu tespit edilmiştir. Matematiksel regresyon modeli sonuçları deneysel ölçümlerle karşılaştırıldığında, tüm geometrik özellikler için hata oranlarının %12’nin altında kaldığı görülmüş ve modelin deneysel tasarımda etkili bir hesaplama aracı olduğu doğrulanmıştır. Deneysel veriler, lazerle kaplanmış Inconel 718’in alt tabaka üzerindeki seyreltme oranının %9 ile %13 arasında değiştiğini göstermektedir. Bu bulgular, kaplamanın performans açısından tatmin edici bir sonuç verdiğini ortaya koymaktadır.

Anahtar Kelimeler

• Inconel 718
• AISI 1050
• Lazer kaplama
• Doğrusal regresyon analizi
• Lazer kaplama geometrisi

Analysis of the Effect of Production Parameters on the Geometric Properties of Inconel 718 Laser Cladding

Öz

In the laser cladding process, evaluating the geometric properties of the cladding has been identified as the primary objective. This study aims to investigate the effects of three fundamental process parameters—scanning speed, laser power, and powder feed rate—on the geometric properties of Inconel 718 coatings on an AISI 1050 steel substrate. For this purpose, an experimental set was created with three different laser powers, four different scanning speeds, and four different powder feed rates, resulting in a total of 18 different experimental samples. To comprehensively evaluate the effects of the process parameters on the coating geometry, analysis of variance (ANOVA) was conducted. The results of the analysis show that the scanning speed is the most influential factor on coating width (44%) and height (79%). It was found that the laser power has a 54% effect on the substrate melting depth, while the powder flow rate has a 35% effect. When comparing the results of the mathematical regression model with experimental measurements, the error rates for all geometric properties were found to be below 12%, confirming that the model is an effective computational tool in the experimental design. The experimental data show that the dilution rate of the laser-clad Inconel 718 on the substrate varies between 9% and 13%. These findings indicate that the coating provides a satisfactory result in terms of performance.

Anahtar Kelimeler

• Inconel 718
• AISI 1050
• Laser cladding
• Linear regression analysis
• Laser cladding geometry

Kaynakça

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