Lack of tightness analysis of concealed welded radiators

Pańcikiewicz, Krzysztof; Radomski, Waldemar

doi:10.1016/j.engfailanal.2020.104579

Cited by 9 publications

(7 citation statements)

References 8 publications

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“…Rogalski et al [ 21 ] welded 304L steel with Incoloy 800HT and conducted an analysis of the properties and structure of the joint, confirming that the TIG method can be used to join these materials even with an unfavorable design resulting from the working conditions of the joint. On the other hand, Pańcikiewicz et al [ 22 ] indicated in their work that although austenitic steels are treated as easily weldable, they cannot be ignored and potentially dangerous imperfections should be identified using both traditional and new test methods. At the same time, Kurc-Lisiecka et al [ 23 ] obtained the sound joints during laser welding of AISI 304 steel in a wide range of welding parameters, confirming the good weldability of this material, even when using a concentrated heat source.…”

Section: Introductionmentioning

confidence: 99%

Laser Dissimilar Welding of AISI 430F and AISI 304 Stainless Steels

et al. 2020

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A dissimilar autogenous laser welded joint of AISI 430F (X12CrMoS17) martensitic stainless steel and AISI 304 (X5CrNi18-10) austenitic stainless steel was manufactured. The welded joint was examined by non-destructive visual testing and destructive testing by macro- and microscopic examination and hardness measurements. With reference to the ISO 13919-1 standard the welded joint was characterized by C level, due to the gas pores detected. Microscopic observations of AISI 430F steel revealed a mixture of ferrite and carbides with many type II sulfide inclusions. Detailed analysis showed that they were Cr-rich manganese sulfides. AISI 304 steel was characterized by the expected austenitic microstructure with banded δ-ferrite. Martensitic microstructure with fine, globular sulfide inclusions was observed in the weld metal. The hardness in the heat-affected zone was increased in the martensitic steel in relation to the base metal and decreased in the austenitic steel. The hardness range in the weld metal, caused by chemical inhomogeneity, was 184–416 HV0.3.

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Section: Introductionmentioning

confidence: 99%

Laser Dissimilar Welding of AISI 430F and AISI 304 Stainless Steels

et al. 2020

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“…Radiator dibuat dengan berbagai macam bahan seperti besi, baja, paduan aluminium, dan perunggu. Kualitas radiator perlu dijaga agar tidak terjadi kegagalan seperti kebocoran radiator akibat panas suhu mesin [2]. Radiator digunakan untuk mendinginkan mesin dari proses pembakaran pada kendaraan bermotor yang prinsipnya didinginkan dengan mengalirkan fluida melalui blok mesin [3].…”

Section: Pendahuluanunclassified

Studi Perbandingan tentang Sifat Mekanik dan Struktur Mikro Material Radiator Impor dan Material Radiator Lokal

Rahmad

Sudjadi

2021

JMPM

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Pengujian pada studi ini menggunakan sampel core radiator impor dan core radiator lokal. Metode pengujian dilakukan dengan tiga tahapan yaitu sebelum heat treatment, sesudah heat treatment, dan uji korosi dengan direndam cairan yang berbeda yaitu H2SO4, NAOH, dan cairan radiator selama 15 hari. Sebelum heat treatment, dilakukan uji komposisi kimia semua sampel radiator dengan alat XRF, uji struktur mikro dengan mikroskop optik pembesaran 500x, dan uji kekerasan micro-vickers dengan beban 100gf dalam waktu 10 detik. Heat treatment dilakukan dengan suhu 850oc dalam waktu 3 jam, kemudian direndam dengan cairan kimia selama 15 hari. Dari pengujian tersebut didapat hasil uji struktur mikro baik sebelum maupun sesudah heat treatment pada kedua sampel radiator tidak terlihat kumpulan atom, matrix dan batas butirnya. Uji kekerasan pada sampel core radiator Mercedez sebelum dipanaskan sebesar 43,4 HV dan 39,2 HV sesudah heat treatment. Pada core radiator lokal, sebelum dipanaskan sebesar43,5 HV dan 38,2 HV sesudah dipanaskan. Hasil uji komposisi kimia menunjukan pada sampel core Mercedez didominasi unsur Ca, Mn, dan Fe dan pada sampel core radiator lokal didominasi unsur Ca, Cu dan Zn. Hasil pengamatan dan analisa setelah direndam cairan H2S04, NAOH, dan cairan radiator pada kedua sampel menunjukkan terjadinya perubahan warna karena adanya perubahan unsur akibat peningkatan konsentrasi atom.

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“…Furthermore, continuous advancements in manufacturing technology, materials science, and distribution enable the incorporation of novel manufacturing methods and materials into production processes. Radiators are an example of such a product, as they may be made from a variety of materials (cast irons, steels, bronzes, and aluminium alloys) and manufacturing procedures (Pańcikiewicz & Radomski, 2020).…”

Section: Introductionmentioning

confidence: 99%

Structural Comparison of Naturally Aspirated and Turbocharged Diesel Engine for Steel and Aluminium Made Radiator: A Finite Element Study

Munir¹,

Razali²,

Iqbal³

et al. 2022

JST

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The current study is based on the structural analysis of radiators made of different materials to compare their effectiveness in the case of naturally aspirated and turbocharged diesel engines. For the analysis of the radiator structure, ABAQUS software was used. In the ABAQUS, static structural analysis was made to calculate the strength of the radiator. The said software is capable of calculating the strength of the radiator considering the boundary conditions (i.e., fixing at corners) as well as the loading conditions. It was observed that stresses generated while using an aluminium radiator were very high than those produced by steel radiators. According to the study, the following are the key findings for the steel and aluminium radiators. In the first case, while three corners were fixed, the steel radiator showed a deflection of 1.86 mm while aluminium exhibited 5.65 mm. However, in the second case in which the radiator had four fixed corners, the deflection of the steel radiator was 1.10 mm, while that of aluminium was 3.36 mm. Additionally, based on the deflections obtained from all investigations, it was found that radiators made of aluminium were more sensitive than those made of steel in both naturally aspirated and turbocharged applications. However, due to aluminium’s strong thermal conductivity, it is compatible with naturally aspirated engines in terms of thermal capacity. To combat turbocharged engine complications caused by high temperatures, such as thermal cracking, engine wear and tear, and so on, a steel-made radiator is more suitable than an aluminium radiator, hence mitigating the issues.

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Lack of tightness analysis of concealed welded radiators

Cited by 9 publications

References 8 publications

Laser Dissimilar Welding of AISI 430F and AISI 304 Stainless Steels

Laser Dissimilar Welding of AISI 430F and AISI 304 Stainless Steels

Studi Perbandingan tentang Sifat Mekanik dan Struktur Mikro Material Radiator Impor dan Material Radiator Lokal

Structural Comparison of Naturally Aspirated and Turbocharged Diesel Engine for Steel and Aluminium Made Radiator: A Finite Element Study

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