Effect of ECAP process on mechanical properties and microstructure of AA-6061 recycled chips

Mohammed, Rawa; Shahab, Ayad; Rezaei, Abbas

doi:10.30684/etj.2023.137807.1367

Cited by 2 publications

(2 citation statements)

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“…Low temperature processes are an alternative to the melting process. Here, a technique called sever plastic deformation [128] is used by processes like friction stir extrusion [213], cyclic extrusion compression [214], high pressure torsion [215], equal channel angular pressing [216], and KOBO extrusion process [217]. The plastic-deformed material is converted into a semi-finished solid product, followed by an extrusion operation into a final product.…”

Section: Direct Conversion Methodsmentioning

confidence: 99%

“…Luo et al [247] recycled titanium machining chips using ECAP; the results indicated fully dense bulk Ti with fine grain sizes having strength higher or comparable to commercial wrought pure Ti. Mohammad et al [216] recycled AA 6061 chips using hot extrusion and subjected the material to the ECAP process. The study investigated the effects of ECAP in samples after 1, 2, and 4 cycles using die with 90 • and 20 • angles.…”

Section: Equal Channel Angular Pressing (Ecap)mentioning

confidence: 99%

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Recent Advancements in Material Waste Recycling: Conventional, Direct Conversion, and Additive Manufacturing Techniques

Golvaskar,

Ojo,

Kannan

2024

Recycling

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To improve the microstructure and mechanical properties of fundamental materials including aluminum, stainless steel, superalloys, and titanium alloys, traditional manufacturing techniques have for years been utilized in critical sectors including the aerospace and nuclear industries. However, additive manufacturing has become an efficient and effective means for fabricating these materials with superior mechanical attributes, making it easier to develop complex parts with relative ease compared to conventional processes. The waste generated in additive manufacturing processes are usually in the form of powders, while that of conventional processes come in the form of chips. The current study focuses on the features and uses of various typical recycling methods for traditional and additive manufacturing that are presently utilized to recycle material waste from both processes. Additionally, the main factors impacting the microstructural features and density of the chip-unified components are discussed. Moreover, it recommends a novel approach for recycling chips, while improving the process of development, bonding quality of the chips, microstructure, overall mechanical properties, and fostering sustainable and environmentally friendly engineering.

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