International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
e-ISSN: 2395 -0056
www.irjet.net
p-ISSN: 2395-0072
Optimization of Cutting Parameters in CNC DRILLING of P30 tool Steel by using Taguchi Method Jayam. Sree hari1, Dr.T.Surya Sekhara Reddy2, Mr.D.Harsha Vardhan3 1PG scholar Sri Venkateswara Institute Of Technology, Anantapuram, 2Professor Sri Venkateswara
Institute Of Technology, Anantapuram,
3. Asst.Professor Sri Venkateswara Institute Of Technology,Anantapuram,
---------------------------------------------------------------------***--------------------------------------------------------------------the cutting fluid to the machining zone. The drilling Abstract - In recent years, by the progresses in operations performed on a drilling machine, which rotates manufacturing industry, great changes have especially and feed the drill to the work piece and creates the hole. been observed in machining of metals. All cutting Drilling usually performed with a rotating cylindrical tool parameters have already been investigated in order to that has two cutting edges on its working end (called a twist advancing the properties of cutting tools and machine drill). Rotating drill fed into the stationary work piece to form a hole whose diameter is determined by the drill diameter. tools. These researches have improved material Drilling makes up about 25% of all the machining processes removals rate, decreased manufacturing time, improve performed. Drilling is really a Complex Process, becauseOnly surface roughness and resulted minimum cutting exit for the chips is the hole that filled by the drill. Friction forces. The effects of dry and wet cuttings have widely results in heat in addition to that due to chip. been examined on metal machining. In this study, the TYPES OF DRILLED HOLES effects of cutting fluid and dry cutting on surface roughness and cutting force have been examined in Through holes: Drill exits from the opposite side of the work piece called through hole. hole depth is equal to the CNC turning of EN9 (AISI1055) medium carbon steel work piece thickness or height. material and tungsten carbide P30 grade tool. This paper reviews the research work carried out from the Blind holes: Drill does not exit from the opposite side inception to the development of CNC Turning within of the work piece called blind hole, hole Depth is less the past decade. It reports on the CNC Turning research than work piece thickness or height. relating to improving performance measures, monitoring and control of process, optimizing the process variables. The paper also discusses the future trend of research work in the same area. Key Words: (Size 10 & Bold) Key word1, Key word2, Key word3, etc (Minimum 5 to 8 key words)‌ Figure 1 Types of drilled holes
DRILLING OPERATIONS
1.INTRODUCTION
Reaming
onventional machining in which a sharp cutting tool is used to mechanical cut the material to achieve the desired shape, size and geometry. The predominant cutting action in machining involves shear deformation of the work material to form a various kinds of chips; as the chips removed, a new surface is exposed, that is called as machined surface. Machining is a most frequently applied to drilling machine
Tapping Counter-boring Counter-sinking Centering or center-drilling Spot-facing CLASSIFICATION OF DRILLING MACHINES
Drilling is a most common and complex used industrial machining processes of creating and originating a hole in mechanical components and work piece. The tool used, called a drill and the machine tool used is called a drill machine. Drilling can also be define as a rotary end-cutting tool having one or more cutting edges called lips, and having one or more helical or straight flutes for the passage of chips and passing
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