Machinability of duplex stainless steels long products: how to deal with the sulphur way?

Renaudot, N.; Chauveau, Éric; Mantel, Marc

doi:10.1051/metal/2011058

Cited by 5 publications

(3 citation statements)

References 1 publication

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“…It consists of a mixed microstructure of both austenite and ferrite in equal proportions. This improves its strength and toughness over conventional austenitic and ferrite grade steels [1]. It has an excellent corrosion resistance ability due to the presence of high percentages of chromium and molybdenum.…”

Section: Introductionmentioning

confidence: 98%

A Comparative Performance Investigation of Single- and Double-Nozzle Pulse Mode Minimum Quantity Lubrication Systems in Turning Super-Duplex Steel Using a Weighted Pugh Matrix Sustainable Approach

Roy,

Kumar,

Panda

et al. 2023

Sustainability

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This study investigates the performance comparison of machining of UNS S32750 super-duplex stainless steel under single- and double-nozzle pulse mode minimum quantity lubrication (MQL) conditions. The pulse mode MQL system delivers lubricant pulses at specific intervals. The Taguchi L9 design, with three factors and their three levels, was taken to perform the CNC turning experiments under both single-nozzle and double-nozzle MQL cooling environments. The surface roughness (Ra), tool-flank wear (VB), tool-flank temperature (Tf), power consumption (Pc), and material removal rate (MRR) are evaluated and compared as performance indicators. In comparison to single-nozzle MQL, the responses of Ra, VB, Tf, and Pc were found to be decreased by 11.16%, 21.24%, 7.07%, and 3.16% under double-nozzle conditions, respectively, whereas MRR was found to be 18.37% higher under double-nozzle conditions. The MQL pulse time was found to be an important variable that affects Ra, VB, Tf, and MRR significantly. Under both cooling scenarios, common wears such as abrasion, built-up edges, adhesion, and notch wear are detected. Furthermore, the Pugh matrix-based sustainability evaluation results revealed that the double-nozzle MQL technique was superior to single-nozzle MQL, achieving improved sustainability for machining super-duplex stainless steel.

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Section: Introductionmentioning

confidence: 98%

A Comparative Performance Investigation of Single- and Double-Nozzle Pulse Mode Minimum Quantity Lubrication Systems in Turning Super-Duplex Steel Using a Weighted Pugh Matrix Sustainable Approach

Roy,

Kumar,

Panda

et al. 2023

Sustainability

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“…6,7 These reasons make them more difficult to machine materials than austenitic and ferritic stainless steels. 8 In addition, a built-up edge (BUE) is a crucial aspect during the machining of DSS. BUE is defined as the highly deformed workpiece material by extremely severe strain adhering around the cutting-edge.…”

Section: Introductionmentioning

confidence: 99%

Machining characteristics investigations of duplex stainless steel by considering dual effect of chip breaker and cooling conditions

Aşcıoğlu

Boy

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Duplex stainless steels (DSSs) use in many applications because of their superior properties like high corrosion, good strength, and low cost. On the other hand, machinability of DSSs is very low due to its superior ductility. This study investigates optimization of cutting parameters, cutting environments (dry and cold air), and chip breaker forms by Taguchi–Grey relational analysis in turning of 2205 grade DSS. The turning tests were conducted using Taguchi’s L16 mixed design by measuring and evaluating the cutting force components and surface roughness criteria (Ra and Rz). When turning of DSS2205 material in medium cutting condition, it is suitable to use low feed rate and high cutting speed for reducing of cutting force and surface roughness. In addition, it was shown that the chip breaker form is as important as the cooling medium in terms of minimizing Built-Up-Edge (BUE), which negatively affects the machinability outputs. Grey relational grade (GRG) indicated that the optimum results for all cutting conditions were the cutting speed of 160 m/min, the feed rate of 0.15 mm/rev, GM chip breaker, and cold air cutting environment. Experimental and ANOVA results indicated that the feed rate is the most important parameter on turning of DSS2205, followed by chip breaker, and cutting environment.

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“…These materials have good resistance to corrosion due to the higher amount of molybdenum and/or chromium content and lower amount of sulphur content in it. The lower sulphur content also offers higher sturdiness and better high-temperature workability [2]. Higher work hardening and toughness, and lower thermal conductivity induce difficulties in machining/manufacturing stainless steels [1].…”

Section: Introductionmentioning

confidence: 99%

Processing of duplex stainless steel by WEDM

Pramanik

Basak

Dixit

et al. 2018

Materials and Manufacturing Processes

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This study investigates the manufacturing process of 2205 duplex stainless steel by wire electrical discharge machining (WEDM) where the effects of pulse-on time, wire tension and pulse-off time on surface finish, kerf width and MRR. It was found that the kerf width was unchanged with the change of pulse-on time at long pulse-of time and higher wire tension.However, it decreased initially and then increased due to the rise of pulse-on time at low values of wire tension and pulse-off time. Low wire tension and pulse-on time, pulse-off time and contributed towards widest kerf. Longer pulse-on time increased MRR due to higher machining/processing speed. Lower wire tension and shorter pulse-off time increased MRR more than that of higher wire tension and pulse-off time. Craters and recast layer were on the machined surfaces at all machining conditions. Increased pulse-on time raised surface roughness at the lower pulse-off time and tension in the wire. The surface finish at high wire tension and longer pulse-on time is always better than that at smaller pulse-on time and lower tension in the wire. The microstructure underneath the recast layer remains unchanged and the failure of wire electrode occurred at higher wire tension, longer pulse-on time and shorter pulse-off time.

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Machinability of duplex stainless steels long products: how to deal with the sulphur way?

Cited by 5 publications

References 1 publication

A Comparative Performance Investigation of Single- and Double-Nozzle Pulse Mode Minimum Quantity Lubrication Systems in Turning Super-Duplex Steel Using a Weighted Pugh Matrix Sustainable Approach

A Comparative Performance Investigation of Single- and Double-Nozzle Pulse Mode Minimum Quantity Lubrication Systems in Turning Super-Duplex Steel Using a Weighted Pugh Matrix Sustainable Approach

Machining characteristics investigations of duplex stainless steel by considering dual effect of chip breaker and cooling conditions

Processing of duplex stainless steel by WEDM

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