ICRTCCNT 2019: Mechatronics最新文献

英文中文

Drilling of Duplex Stainless Steel 2205 Under Flood and Criogenic Colling Condition 双相不锈钢2205在洪水和低温冷却条件下的钻孔

ICRTCCNT 2019: Mechatronics

Pub Date : 2019-08-02 DOI: 10.2139/ssrn.3431241

K. T, Vigneshwaran B, C. K., G. B

In this work drilling experiments is carried out on Duplex Stainless Steel (DSS) 2205 material. DSS material being inherently hard is tough to machine. Generally it has ferrite and austenite phases of microstructure which is equally present in right proportions throughout the material. This material finds its application in marine and petrochemical application. In this experimental work, drilling is carried out using a solid carbide drill bit 8.5mm diameter without coating. Machining parameters and their respective values for performing the experiment are cutting velocity 40 m/min, feed rate 0.03, 0.05, 0.07 mm/rev and constant depth of cut 20 mm respectively. Drilling is carried out by flood and cryogenic (LN2) cooling condition separately. The experimental process factors considered are (output parameters) thrust force, and torque, temperature, micro structural analysis and surface roughness. After the experiment it is found that the thrust force and torque comparatively maximum in cryogenic cooling condition. It is also observed that the cutting temperature calculated during the experiment is comparatively minimum in cryogenic cooling condition.

本文以双相不锈钢(DSS) 2205为材料进行了钻孔实验。DSS材料本身就很硬，很难加工。通常它具有铁素体和奥氏体相的微观组织，它们在整个材料中以正确的比例均匀存在。该材料在船舶和石油化工领域有广泛的应用。在本实验工作中，使用直径8.5mm的无涂层硬质合金钻头进行钻孔。实验的加工参数分别为切削速度40 m/min，进给速度0.03、0.05、0.07 mm/rev，切削深度为20 mm。钻井分别在洪水和低温(LN2)冷却条件下进行。考虑的实验工艺因素包括(输出参数)推力、扭矩、温度、微观结构分析和表面粗糙度。实验发现，在低温冷却条件下，推力和扭矩相对最大。在低温冷却条件下，实验计算的切削温度相对最小。

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