The objective of the present investigation is to develop and study the thermal and rheological properties of the in-house developed flexible abrasive media. It is a mixer of viscoelastic polymer and plasticizer mixed with micro-abrasive particles, used for removing debris and irregularities present on internal and external complex surfaces used in the aerospace, automotive and medical industries. This paper presents, morphology of the developed abrasive media is captured using the Scanning Electron Microscope (SEM), thermal properties of the abrasive media are studied using Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) analysis along with tensile properties of the abrasive media ascertained using the universal testing machine. The rheological properties of the media play a major role in media flow over the intricate shapes and removing the material from the surface. To understand the media behavior, further rheological properties such as viscosity, shear stress, storage modulus, loss modulus, loss tangent, and complex viscosity are ascertained with varying shear rate and frequency at different temperature using rheometer. The TGA and DSC results shows abrasive media has good thermal stability and possibility of using the media for finishing process under lower temperature <100 °C. Rheological studies shows the shear thinning behaviour of the media and elastic solid behavior (G′ > G′′) at different temperatures which is suitable for finishing the complex internal and the external features efficiently and effectively. The developed abrasive media is used to finish the hydraulic components which are difficult to access with conventional tools and the results of finishing process are presented.

本研究的目的是开发和研究内部开发的柔性磨料的热学和流变学特性。它是由粘弹性聚合物和增塑剂与微磨料颗粒混合而成的混合器，用于去除航空航天，汽车和医疗行业中内部和外部复杂表面上存在的碎屑和不规则物。本文介绍，使用扫描电子显微镜（SEM）捕获已开发磨料的形态，使用热重分析（TGA）和差示扫描量热法（DSC）分析研究磨料的热性能以及材料的拉伸性能。使用万能试验机确定的磨料。介质的流变特性在介质流过复杂形状并从表面去除材料方面起着重要作用。为了了解介质的行为，使用流变仪在不同温度下以不同的剪切速率和频率确定了进一步的流变特性，例如粘度，剪切应力，储能模量，损耗模量，损耗角正切和复数粘度。TGA和DSC结果表明，研磨介质具有良好的热稳定性，并有可能在<100°C的较低温度下使用该介质进行精加工。流变学研究表明，在不同温度下，介质的剪切稀化行为和弹性固体行为（G'> G''）适合于有效地完成复杂的内部和外部特征。