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9--3
147
Cutting speed and choice of tools
T = tooth pitch in mm.
A larger pitch should be chosen when, as a result of the shape of the piece to be
cut, the cross---section at any given point exceeds the average cross---section given
above.
Types of swarf:
H
Very fine or fragmented swarf indicates that the downstroke speed and/or cutting
pressure is too low.
H
Thick and/or blue swarf indicates that the blade is overloaded.
H
Long coils of swarf indicate ideal cutting conditions.
Cutting and feeding speed
The cutting speed, in m/min, and the head feeding speed, in cm
2
/min, are limited
by the amount of heat generated near to the points of the teeth. If the head
feeding speed is too high, the cut will not be straight in either the vertical or the
horizontal plane. As we have already said, the cutting speed depends on the
strength (kg/mm
2
) and hardness (HRC) of the material and the dimensions of the
thickest section. The feeding speed depends on the cross---section of the material.
Solid or thick---walled materials (thickness > 5 mm), can therefore be cut at high
speed providing there is sufficient swarf removal by the blade, while thin---walled
materials such as tubes or thin profiles must be cut with a low feeding speed. A
new blade requires a wearing---in period, during which time a feeding speed of
about half normal speed should be used.
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...
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Page 86: ...6 19 76 Diagrams exploded views and replace...
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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...
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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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