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Chip Formation
Cutting Forces
Milling General
Up & Down cut Milling
Milling Cutters
Tool Materials
Insert Tooling
Coatings
Cutting Fluids
Turning Machines
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Shearing Operations
Machine Construction
Slide Movement
Control & Feedback
SpeedsFeeds-Turning
SpeedsFeeds-Milling
Taylors Equation
Carbide Grades
Insert Codes
Laser v Water Jet

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Recommended Reading:

 Manufacturing Engineering and Technology

  Machinery's Handbook

  Marks' Standard Handbook for Mechanical Engineers

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Carbide Grades

 

Section 2.1.d) explains how Carbide hardness and toughness can be altered, dependent upon the relative quantities of Carbide and matrix metal powders in the mix prior to cementing and sintering.

The International Systems Organisation (I.S.O.) have produced codes to simplify selecting the correct grade of Carbide.

  

CUTTING CONDITIONS

 CODE COLOUR 
Finishing Steel, high cutting speeds, light feeds, Favourable conditions

 

 P01 BLUE

Increasing wear resistance

Increasing cutting speed.

Increasing shock resistance.

Increasing feed.
Finishing & light roughing of Steel & Castings with no coolant

 

 P10
Medium roughing of Steel, less favourable conditions. Moderate cutting speeds & feeds.

 

 P20
General purpose turning of Steel & Castings, medium roughing.

 

 P30
Heavy roughing of Steel & Castings, Intermittent Cutting, low cutting speeds & feeds.

 

 P40
Difficult conditions, heavy roughing/intermittent Cutting, low cutting speeds & feeds.

 

 P50
Finishing Stainless Steel at high cutting speeds.

  

M10 YELLOW
Finishing & medium roughing Alloy Steels.   

         

M20
Light to heavy roughing Stainless Steel & Difficult to cut materials.                                      

 

 M30
Roughing tough skinned materials at low cutting Speeds.                                                                

 

 M40
Finishing Plastics &Cast Iron

   

K01 RED
Finishing Brass & Bronze at high cutting speeds & feeds

 

  K10
Roughing Cast-Iron, Intermittent cutting, low speeds & High feeds.                   

 

 K20
Roughing & finishing Cast-Iron & non-ferrous materials. Favourable conditions.   

 

   K30

 

Suggested Reading:

  Manufacturing Engineering and Technology Kalpakjian, Schmid and Schmidt.

  Machinery's Handbook

  Marks' Standard Handbook for Mechanical Engineers

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