Abstract
Milling Machining is a widely accepted nontraditional machining technique used to produce parts with complex shapes and configurations. The material is removed in two stages roughing and finishing, the flat end cutter removed the unwanted part of material, then finished by end mill cutter. In milling technique, the role of machining factors such as cutting depth, spindle speed and feed has been studied using Taguchi technique to find its effectiveness on surface roughness. Practical procedure is done by Taguchi Standard matrix. CNC milling is the most conventional process which is used for removing of material from workpiece to perform the needed shapes. The results and relations indicate that the rate of feed is very important factor for modeling surface roughness. The plot of S/N ratio shows that the optimum combination of the milling factors that gives the best value of surface accuracy. The best combination of milling factors has also been predicted to minimize the surface roughness.
Highlights
Producing components with complex surfaces don’t like producing parts with regular surfaces
This paper reveal the role of some of machining factors like on surface roughness in CNC milling process
Use of low depth of cut, high spindle speed and low feed rate are recommended to find out best surface roughness for the specified range in a material
Summary
Producing components with complex surfaces don’t like producing parts with regular surfaces. This paper reveal the role of some of machining factors like (feed rate, depth of cut and spindle speed) on surface roughness in CNC milling process. For these causes it is an important to keep the surface finish and consistent clearances. The most important combinations that affect product roughness are between the depth of cut and cutting speed, and between spindle speed and feed rate This practical investigation demonstrates the Taguchi optimization technique, which is applied to find the best surface roughness in end milling operation [7]. Aluminum alloy was the workpiece and the experiment is conducted on it by (HSS) tool with finishing pass The machining conditions such as feed rate, rotational speed and cutting depth. Taguchi L9 orthogonal array was used to conduct the experiments
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