Chapter 6 Machining Center Carbide Insert Fundamentals 121
Objectives
Information in this chapter will enable you to:
• List several safety precautions to observe while machining with
carbide inserts.
• List four milling cutter types used in machining.
• Identify different cutter mounting methods used for milling cutters.
• Differentiate between a negative and a positive insert entry angle.
• Differentiate between a 0° and a 45° lead angle.
• Recognize the different insert shapes.
• Explain the milling insert identification system.
• Select inserts for different machining situations.
• Explain the effect insert nose radii have on machining.
• Explain how the size of an insert is specified.
Technical Terms
Chapter 6
N10G20G99G40
N20G96S800M3
N30G50S4000
N40T0100M8
N50G00X3.35Z1.25T0101
N60G01X3.25F.002
N70G04X0.5
N80X3.35F.05
N90G00X5.0Z0T0101
01111
N10G20G99G40
N20G96S800M3
N30G50S4000
N40T0100M8
N50G00X3.35Z1.25T0101
N60G01X3.25F.002
N70G04X0.5
N80X3.35F.05
Machining Center Carbide
Insert Fundamentals
adapter mounting
collet chuck adapter
mounting
cutter pitch
end mill adapter
mounting
insert grades
insert size
lead angles
milling
nose radius
Weldon shank
Milling
Milling is the process of removing material with a multitooth
rotating cutter. Milling involves a nonrotating workpiece, interrupted
tool engagement, varying chip thickness, and varying cutting forces. An
operator should possess a working knowledge of cutter geometry, carbide
grades, setup rigidity, and horsepower requirements. The four basic types
of milling cutters are end mills, face mills, slotting cutters, and thread mills,
Figure 6-1.
121