The influence of pre-heat treatment on laser welding of T-joints of workpieces made of selective laser melting steel and cold rolled stainless steel

Kuryntsev, S. V.

doi:10.1016/j.optlastec.2018.05.031

Cited by 16 publications

(11 citation statements)

References 17 publications

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“…A few studies have already dealt with this issue. Kuryntsev [ 5 ] investigated the weldability of stainless steel produced by SLM in comparison with the same cold rolled (CR) material. He concluded that steel produced by different methods is very well weldable and that heat treatment fundamentally affects the strength of SLM welded joints.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Welded Joint Properties on an AISI316L Stainless Steel Tube Manufactured by SLM Technology

et al. 2020

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This work is focused on the analysis of the influence of welding on the properties and microstructure of the AISI316L stainless steel tube produced by 3D printing, specifically the SLM (Selective Laser Melting) method. Both non-destructive and destructive tests, including metallographic and fractographic analyses, were performed within the experiment. Microstructure analysis shows that the initial texture of the 3D print disappears toward the fuse boundary. It is evident that high temperature during welding has a positive effect on microstructure. Material failure occurred in the base material near the heat affected zone (HAZ). The results obtained show the fundamental influence of SLM technology in terms of material defects, on the properties of welded joints.

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Section: Introductionmentioning

confidence: 99%

Analysis of Welded Joint Properties on an AISI316L Stainless Steel Tube Manufactured by SLM Technology

et al. 2020

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“…Bundan dolayı kristalleşme hızı ısı iletim modu ile kıyaslandığında daha az olmaktadır. Kaynaklı yapılarda ısıl işlem rejiminin bağlantı dayanımını etkilediği gözlemlenmiştir [22]. Fieger ve diğerleri 316(SLE) -HSLA340(dövme) ve 18Ni-300(SLM) -22MnB5(dövme) kombinasyonlarını lazer bindirme kaynağı ile birleştirmiş ve kesme kuvvetlerinin otomotiv sektörü için yeterliliğini araştırmışlardır.…”

Section: Katmanlı İmalat Ile üRetilen Malzemelerin Kaynağıunclassified

Section: Lazer Işını Ile üRetilen Malzemelerin Kaynağıunclassified

“…Şekil 4. SLE PH1 ve soğuk haddelenmiş 321 malzemenin kaynak şeması [22] Fieger ve diğerleri 316(SLE) -HSLA340(dövme) ve 18Ni-300(SLM) -22MnB5(dövme) kombinasyonlarını lazer bindirme kaynağı ile birleştirmiş ve kesme kuvvetlerinin otomotiv sektörü için yeterliliğini araştırmışlardır. Kaynak kombinasyonu Tablo 2'de gösterilmiştir.…”

Section: Lazer Işını Ile üRetilen Malzemelerin Kaynağıunclassified

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Katmanlı İmalat ile Üretilen Metal Malzemelerin Kaynak Kabiliyeti

Aydın

Karamolla

2019

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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Öz Katmanlı imalat teknolojisine olan ilgi son yıllarda artış göstermektedir. Katmanlı imalat tekniği, geleneksel imalat yöntemlerinin aksine malzeme eksiltme değil de, malzeme eklenmesi prensibine dayanmaktadır. Yüksek tasarım serbestliği, artık malzeme oluşmaması, kullanıcıya özel ürünlerin imal edilebilmesi, tasarımdan imalata geçiş süresinin düşük olması, hücresel yapılar ve optimum tasarımlar ile daha hafif ürün elde edilebilmesi katmanlı imalat tekniğinin avantajlarındandır. Bunun yanında katmanlı imalat tekniğinin bir takım dezavantajları da bulunmaktadır. Bunlardan bir tanesi katmanlı imalat ile üretilen ürünlerin boyutlarının sınırlı olmasıdır. Araştırmacılar bu problemi ortadan kaldırmak amacıyla katmanlı imalat tekniği ile üretilen metalik malzemeleri kaynak yöntemiyle birleştirerek çalışmalar yapmaktadır. Bu çalışmada lazer ergitme-sinterleme ve elektron ışını ergitme yöntemleri kullanılarak üretilen malzemelerin kaynak kabiliyetinin araştırıldığı çalışmalar derlenmiştir.

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“…We used this methodology, and enriched the traditional finite element (FE) modelling procedure by taking into account the powder bed fusion (PBF) part characteristics, where the main challenge was to quantify the mechanical modifications in the heat affected zone (HAZ) due to welding. Among the experimental studies related to the PBF parts, 5,6,23,24,31–33 we referred to the research by Buchanan et al 6 to calibrate the printed SS316L model, and to the works done by Järvinen 5 and Laitinen 23 to calibrate the welded connection.…”

Section: Introductionmentioning

confidence: 99%

Resource‐efficient joint fabrication by welding metal 3D‐printed parts to conventional steel: A structural integrity study

Chierici

Berto

Kanyilmaz

2021

Fatigue Fract Eng Mat Struct

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Metal 3D printing technology can increase the Architecture, Engineering and Construction (AEC) industry's resource‐efficiency by removing a major fabrication constraint: geometrical complexity. Since the large part dimensions are a current limit of metal 3D printers, we propose a ‘hybrid’ manufacturing approach by welding optimized printed nodes to conventional steel elements for tubular constructions. In this work, we identified suitable analytical formulations for metal 3D‐printed parts, and calibrated numerical models for hybrid joints by means of experimental results. Finally, we quantified the structural integrity performance of the hybrid joints. Numerical simulations highlighted the joints' most sensitive regions, where the optimisation reduced the stresses up to 40% under tensile loading. The butt weld between the printed node and the conventional profiles guaranteed a simple state of stress in the weld, providing the hybrid joint a fatigue life of 2 × 106 cycles under 100‐MPa cyclic loading. These results confirm that metal 3D printing combined with topology optimisation can remarkably reduce the quantity of resource‐consuming cutting and welding operations to fabricate a structural joint for static and fatigue loads.

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The influence of pre-heat treatment on laser welding of T-joints of workpieces made of selective laser melting steel and cold rolled stainless steel

Cited by 16 publications

References 17 publications

Analysis of Welded Joint Properties on an AISI316L Stainless Steel Tube Manufactured by SLM Technology

Analysis of Welded Joint Properties on an AISI316L Stainless Steel Tube Manufactured by SLM Technology

Katmanlı İmalat ile Üretilen Metal Malzemelerin Kaynak Kabiliyeti

Resource‐efficient joint fabrication by welding metal 3D‐printed parts to conventional steel: A structural integrity study

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