Manufacturing Technology Today

B. Satheesh Kumar ¹, G. Padmanabhan ², P. Vamsi Krishna ³

Affiliations
1 Department of Mechanical Engineering, N.B.K.R. Institute of Science & Technology, Vidyanagar, IN
2 Department of Mechanical Engineering, S. V. University College of Engineering, Tirupati, IN
3 Department of Mechanical Engineering, National Institute of Technology, Warangal, IN

Abstract

This study focuses on evaluating the influence of different proportions (5%, 10% and 15%) of extreme pressure (EP) additive in vegetable oil based cutting fluids (canola, coconut and sesame oils) during turning of AISI 1040 steel. The process parameters considered in this work are type of cutting fluid, proportion of EP additive, cutting speed and feed rate. The influence of these process parameters on performance characteristics viz. cutting force (F_c), cutting tool temperature (T), tool flank wear (V_b) and surface roughness (R_a) is investigated by signal-to-noise ratio (S/N) and analysis of variance (ANOVA) from the experimental data developed by using L₂₇ orthogonal array. The results indicated that cutting fluid has significant influence on tool flank wear and surface roughness whereas, cutting speed has significant influence on cutting force and cutting tool temperature.

Keywords

Turning, Vegetable Oils, Extreme Pressure Additive, Taguchi Method, Regression Analysis.

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A. L. S. Brahma Reddy ¹, B. Satheesh Kumar ², G. Padmanabhan ¹

Affiliations
1 Dept of Mech Engg, S. V. University College of Engineering, SV University, Tirupati, IN
2 Dept of Mech Engg, N.B.K.R. Institute of Science & Technology, Vidya Nagar, SPSR Nellore Dt., IN

Abstract

Coolants are used during machining for variety of reasons such as improving tool life, reducing workpiece thermal deformation and surface roughness. Conventional cutting fluids are non-biodegradable which results in environmental pollution and danger to human health, hence there is a growing demand for biodegradable material thus opening an avenue for vegetable oils as an alternative to conventional cutting fluids. In this context, the present work focuses on environmental friendly cutting fluids such as vegetable oil based cutting fluids (VBCFs). The objective of present work is to determine the influence of canola based cutting fluid with Sulphur based extreme pressure (EP) additive on machining performance. Forces, cutting tool temperature and surface roughness are measured during turning of AISI 1040 steel with CNMG120408 NC3220 coated carbide tool. Machining performance of canola based cutting fluid with different proportions of EP additive in its mixture is analysed.

Keywords

Turning, AISI 1040, EP Additive, Canola Based Cutting Fluid.

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G. Maheedhara Reddy ¹, V. Diwakar Reddy ², B. Satheesh Kumar ¹

Affiliations
1 Department of Mechanical Engineering, N.B.K.R.I.S.T., Vidyanagar, Nellore, Andhra Pradesh, IN
2 Department of Mechanical Engineering, S V University, Tirupati, Andhra Pradesh, IN

Abstract

The main objective of the paper on Radial Ball Bearing (RBB) to lessen the warmth age on bearing surface and bolster spiral and hub stacking and it can stay away from the warmth age by grating, the wear and force misfortunes brought about by the relative movement between the metal materials. Warmth is produced by the heap position in the bearing framework, which cause the temperature expanding inside the bearing surface and expanded temperatures may offer ascent to untimely disappointments. Along these lines, it is essential to figure the temperature in the orientation because of burden position. Here a summed up model is created utilizing Dimensional Analysis of Matrix Method (DAMM) to assess dimensionless connection between’s the reaction and result parameters for the appraisal of warmth age on the bearing surface on a created test rig. Reaction Surface Methodology (RSM) is utilized for the experimentation and investigate the reliance of different factors on the warmth age of these course. A numerical investigation created in the examination demonstrated the viability of DAMM model along side the adequacy of burden position for location of warmth age on spiral metal roller surface.

Keywords

RBB, DAMM, RSM, Load Position.

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