Effect of Different Ultrasonic Power on the Properties of RHA Steel Welded Joints

Yin, Peng; Xu, Chunguang; Pan, Qinxue; Zhang, Wenjun; Jiang, Xiaowei

doi:10.3390/ma15030768

Cited by 12 publications

(8 citation statements)

References 39 publications

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“…Titanium alloys and ceramic materials are used only in limited areas because of their high cost and difficult welding [ 8 ] and processing characteristics. In contrast, high-hardness armor (HHA) [ 9 ], rolled homogeneous armor (RHA) [ 10 ], and ultra-high-hardness armor (UHA) [ 11 ] steels, which are inexpensive and exhibit excellent strength, workability, and weldability, are widely used.…”

Section: Introductionmentioning

confidence: 99%

Application of synchronized tandem welding to high-hardness armor steel

Seo,

Jeong,

Son

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Application of synchronized tandem welding to high-hardness armor steel

Seo,

Jeong,

Son

et al. 2024

Heliyon

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“…The features of RFW [1] encompass several advantages, including the absence of electric arcs, low energy consumption [2], and minimal environmental impact [3]. Consequently, RFW finds extensive applications in joining various components [4], such as producing automotive parts, piston rods, shafts, and tubes [5]. RFW is frequently employed to join two cylindrical components, offering numerous benefits such as reduced cycle times, minimized material wastage, superior joint strength, and the capability to bond materials, whether similar or dissimilar.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Weld Quality of Polylactic Acid Biomedical Materials Using Rotary Friction Welding

Kuo,

Liang,

Huang

et al. 2024

Polymers

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Polylactic acid (PLA) stands out as a biomaterial with immense potential, primarily owing to its innate biodegradability. Conventional methods for manufacturing PLA encompass injection molding or additive manufacturing (AM). Yet, the fabrication of sizable medical devices often necessitates fragmenting them into multiple components for printing, subsequently requiring reassembly to accommodate the constraints posed by the dimensions of the AM platform. Typically, laboratories resort to employing nuts and bolts for the assembly of printed components into expansive medical devices. Nonetheless, this conventional approach of jointing is susceptible to the inherent risk of bolts and nuts loosening or dislodging amid the reciprocating movements inherent to sizable medical apparatus. Hence, investigation into the joining techniques for integrating printed components into expansive medical devices has emerged as a critical focal point within the realm of research. The main objective is to enhance the joint strength of PLA polymer rods using rotary friction welding (RFW). The mean bending strength of welded components, fabricated under seven distinct rotational speeds, surpasses that of the underlying PLA substrate material. The average bending strength improvement rate of welding parts fabricated by RFW with three-stage transformation to 4000 rpm is about 41.94% compared with the average bending strength of PLA base material. The average surface hardness of the weld interface is about 1.25 to 3.80% higher than the average surface hardness of the PLA base material. The average surface hardness of the weld interface performed by RFW with variable rotational speed is higher than the average surface hardness of the weld interface performed at a fixed rotating friction speed. The temperature rise rate and maximum temperature recorded during RFW in the X-axis of the CNC turning machine at the outer edge of the welding part surpassed those observed in the internal temperature of the welding part. Remarkably, the proposed method in this study complies with the Sustainable Development Goals due to its high energy efficiency and low environmental pollution.

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“…In general, RFW gives many features based on its practical experience in industry compared with adhesive bonding [2,3]. The RFW process provides a lower peak temperature in the weld joint compared with fusion welding (FW) [4][5][6]. Therefore, a wide range of similar or dissimilar materials can be joined efficiently and economically.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Performance and Microstructural Evolution of Rotary Friction Welding of Acrylonitrile Butadiene Styrene and Polycarbonate Rods

et al. 2023

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Rotary friction welding (RFW) is a green manufacturing technology with environmental pollution in the field of joining methods. In practice, the welding quality of the friction-welded parts was affected by the peak temperature in the weld joint during the RFW of dissimilar plastic rods. In industry, polycarbonate (PC) and acrylonitrile butadiene styrene (ABS) are two commonly used plastics in consumer products. In this study, the COMSOL multiphysics software was employed to estimate the peak temperature in the weld joint during the RFW of PC and ABS rods. After RFW, the mechanical performance and microstructural evolution of friction-welded parts were investigated experimentally. The average Shore A surface hardness, flexural strength, and impact energy are directly proportional to the rotation speed of the RFW. The quality of RFW is excellent, since the welding strength in the weld joint is better than that of the ABS base materials. The fracture occurs in the ABS rods since their brittleness is higher than that of the PC rods. The average percentage error of predicting the peak temperature using COMSOL software using a mesh element count of 875,688 for five different rotation speeds is about 16.6%. The differential scanning calorimetry curve for the friction-welded parts welded at a rotation speed of 1350 rpm shows an endothermic peak between 400 to 440 °C and an exothermic peak between 600 to 700 °C, showing that the friction-welded parts have better mechanical properties.

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Effect of Different Ultrasonic Power on the Properties of RHA Steel Welded Joints

Cited by 12 publications

References 39 publications

Application of synchronized tandem welding to high-hardness armor steel

Application of synchronized tandem welding to high-hardness armor steel

Enhancing the Weld Quality of Polylactic Acid Biomedical Materials Using Rotary Friction Welding

Mechanical Performance and Microstructural Evolution of Rotary Friction Welding of Acrylonitrile Butadiene Styrene and Polycarbonate Rods

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