Investigation of Surface Morphology and Topography Features on Abrasive Water Jet Milled Surface Pattern of SS 304

Abstract

Among the nontraditional milling processes, abrasive water jet (AWJ) is a cold machining technique for producing surface textures on a wide variety of materials. This article reports the feasibility study of producing biomedical implant surface pattern on stainless steel 304 using controlled deposition of AWJ milling. Preliminary investigation on the AWJ-milled surface pattern was carried out through the controllable milling parameters such as fluid pressure, stand-off distance (SOD), nozzle feed rate and garnet flow rate. The preliminary observations made in this study were the depth of cut, metal removal rate, and surface roughness for the evaluation of milled surface characteristics. The multicriteria technique, i.e., Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), was carried out for the selection of the process parameter settings through the efficient use of preliminary observations considered in this study. Surface morphology, topography and their features in the AWJ-milled surface pattern of stainless 304 were examined on the basis of selected parameter settings. The result confirmed the feasibility of producing a rough spot groove texture through controlled deposition of AWJ milling operations. Results of this study can be highly helpful for dental implant manufacturing industries in the production of a precise surface pattern on biomaterials.

Prediction of Surface Roughness of an Abrasive Water Jet Cut Using an Artificial Neural Network

“…Overview articles [ 1 , 2 ] provide a comprehensive review of the AWJ process parameters. Some researchers even try to control the surface texture with process parameters [ 3 ]. Many traditional modeling techniques, such as regression analysis, do not provide satisfactory results, especially when the relationship between the target function and the influencing parameters is non-linear, as is usually the case in complex phenomena (such as AWJ machining); this indicates the appropriateness of artificial neural network (ANN) based methods for overall cutting process modeling [ 4 ].…”

Investigations on Water Jet Peening of AZ31B Mg Alloy for Bio Medical Implants

“…Bannerji et al [8] have reported poor corrosion performance of LSP ZE41 Mg which has no Al content, indicating the importance of Aluminium presence in Mg alloy [9]. However, AZ31B Mg alloys show rapid and intense corrosion rate in physiological environment [10] leading to adverse effects and harm to tissues during recovery. Enhancement of surface texture is mandatory for the inhibition of corrosion characteristics and for the achievement of better osteoblast with natural bones.…”

Influence of Steel Structure on Machinability by Abrasive Water Jet

“…The technology of Abrasive waterjet (AWJ) has been widely used in many areas of human activity for several decades. The physical principle of the process is the transfer of mechanical energy from the pump to material and its use for required operations, namely various types of material disintegration such as milling [1,2], machining of composites [3], rock breaking [4], wood cutting [5], and many others. One of the most frequent and important applications of this technology is material cutting.…”

“…One of the most frequent and important applications of this technology is material cutting. Its efficiency should be evaluated from two points of view: either by the amount of consumed energy along with the costs, or by the evaluation of the quality of the cut, namely the surface roughness and cutting accuracy [2,[5][6][7][8]. In the case of plain dividing cuts, the quality is usually not the most important thing.…”