Investigation of end mill tool modal frequency with carbon steel and cast iron work material using impact excitation

Author(s):  
Ratan A. Patil ◽  
Santosh S. Amarapure
2013 ◽  
Vol 315 ◽  
pp. 57-62 ◽  
Author(s):  
Sia Chee Kiong ◽  
Loo Yee Lee ◽  
Siaw Hua Chong ◽  
Mohd Azwir Azlan ◽  
Nik Hisyamudin Muhd Nor

This study is an approach to investigate the environmental impact of screw manufacturing and to choose suitable material for selected screw-making processes for the best performance with minimum environmental impact. The parameters involved were types of material and screw-making process using the environmental data available in Asia region. The two different manufacturing approaches being evaluated were machining and forging. The types of material considered were low carbon steel, stainless steel, titanium alloy and aluminium alloy. As for machining process, the materials being considered in screw manufacturing were low carbon steel, stainless steel, titanium alloy, aluminium alloy, magnesium alloy and cast iron. The information of environmental impact are generated by SolidWorks. Sustainability tool was used in the formation of pair-wise comparison matrices for Analytic Hierarchy Process (AHP). Then, the ranking of global priorities had enabled the determination of appropriate material to be used for those selected screw manufacturing process. As a result, aluminium alloy was found to give minimum environmental impact for forging process whereas cast iron was found to excel in machining process. At the same time, titanium alloy was not suggested to be used in either process.


2006 ◽  
Vol 20 (25n27) ◽  
pp. 4571-4576
Author(s):  
TERUTOSHI YAKUSHIJI ◽  
W. GEORGE FERGUSON ◽  
MASAHIRO GOTO

In order to study the mechanism of decreasing tensile strength and elongation of Austempered Ductile Cast Iron (ADI) in the wet condition, various tension tests and impact tests were carried out. Three point bending fatigue tests were carried out on ADI and annealed 0.55% carbon steel to clarify the influence of water on fatigue strength. The main conclusions are as follow. Embrittlement by water begins when plastic deformation starts in a tension test. The fatigue limit of ADI in water showed a lower value than that in air. The influence of a water environment on fatigue behaviour was similar to that of annealed 0.55% carbon steel. Embrittlement such as that in a tension test was not observed in a fatigue test.


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