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MEP S.p.A.
9--6
150
Use and maintenance manual
TIGER 370 CNC--MR
POSITIVE AND NEGATIVE CUTTING ANGLES
The cutting angle
γ
may vary from positive to negative depending on the cutting
speed, the profile and the type of material to be cut.
A positive angle
γ
determines better penetration of the tool and hence lower
shear stress and greater ease of sliding for the swarf over the cutting edge. On the
other hand, the cutting edge has lower mechanical resistance, so as the breaking
load of the material to be cut increases, the cutting angle decreases from positive
until it becomes negative so as to offer a cutting edge with a larger resistant
section.
B
γ
Positive
Short swarf material such as brass, bronze, aluminium and hard cast iron require
smaller cutting angles because the swarf becomes crushed immediately and the
rake angle has little effect during the cutting stage.
The
TIGER 370 CNC---MR
uses discs with positive cutting angles for cutting solid
materials and with negative cutting angles for cutting hollow profiles. This is
because, as a result of the high cutting speeds (2900 rpm), even with non---ferrous
materials the tool ”strikes” against the wall of the profile to be cut several times,
thus requiring a cutting edge with a larger resistant section.
B
γ
Negative
Summary of Contents for 370 CNC--MR
Page 1: ...USE AND MAINTENANCE MANUAL YEAR OF MANUFACTURE ______________ TIGER 370 CNC MR EN...
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Page 15: ...1 5 5 Introduction and technical specifications...
Page 82: ...6 15 72 Diagrams exploded views and replace...
Page 83: ...MEP S p A 6 16 73 Use and maintenance manual TIGER 370 CNC MR...
Page 84: ...6 17 74 Diagrams exploded views and replace...
Page 85: ...MEP S p A 6 18 75 Use and maintenance manual TIGER 370 CNC MR...
Page 86: ...6 19 76 Diagrams exploded views and replace...
Page 87: ...MEP S p A 6 20 77 Use and maintenance manual TIGER 370 CNC MR...
Page 88: ...6 21 78 Diagrams exploded views and replace...
Page 90: ...6 23 80 Diagrams exploded views and replace...
Page 91: ...MEP S p A 6 24 81 Use and maintenance manual TIGER 370 CNC MR...
Page 92: ...6 25 82 Diagrams exploded views and replace...
Page 93: ...MEP S p A 6 26 83 Use and maintenance manual TIGER 370 CNC MR...
Page 94: ...6 27 84 Diagrams exploded views and replace...
Page 95: ...MEP S p A 6 28 85 Use and maintenance manual TIGER 370 CNC MR...
Page 111: ...MEP S p A 6 44 101 Use and maintenance manual TIGER 370 CNC MR Fixed worktable...
Page 113: ...MEP S p A 6 46 103 Use and maintenance manual TIGER 370 CNC MR Turntable...
Page 115: ...MEP S p A 6 48 105 Use and maintenance manual TIGER 370 CNC MR Vice assembly...
Page 117: ...MEP S p A 6 50 107 Use and maintenance manual TIGER 370 CNC MR Head unit...
Page 119: ...MEP S p A 6 52 109 Use and maintenance manual TIGER 370 CNC MR Motor assembly...
Page 121: ...MEP S p A 6 54 111 Use and maintenance manual TIGER 370 CNC MR Blade guard unit...
Page 123: ...MEP S p A 6 56 113 Use and maintenance manual TIGER 370 CNC MR Electro cylinder unit...
Page 125: ...MEP S p A 6 58 115 Use and maintenance manual TIGER 370 CNC MR Supply carriage unit...
Page 127: ...MEP S p A 6 60 117 Use and maintenance manual TIGER 370 CNC MR Supply roller unit...
Page 129: ...MEP S p A 6 62 119 Use and maintenance manual TIGER 370 CNC MR Control panel...
Page 131: ...MEP S p A 6 64 121 Use and maintenance manual TIGER 370 CNC MR Guard rail...
Page 145: ...7 13 135 adjust the position of the blade in relation to the teeth as shown...
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