Term
| Types of natural abrasives? |
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Definition
Emery
Garnet
Flint
Quartz
Diamond |
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Term
| Types of Artificial Abrasives? |
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Definition
Aluminum Oxide
Silicone Carbide
Cubic Boron Nitride
Diamond |
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Term
| What is aluminum oxide made from? |
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Definition
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Term
| What is the softest manufactured abrasive? |
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Definition
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Term
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Definition
| The ability to shed dull edges to form new sharp edges |
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Term
| What is the softest and hardest abrasive grains on the Knoop Hardness Scale? |
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Definition
| Aluminum Oxide(2100) and Diamond(7000) |
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Term
| What is the most common abrasive? |
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Definition
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Term
What does this wheel call out mean?
51 A 36 L 5 V 23 |
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Definition
51- Exact kind of abrasive (Doesnt Matter)
A- Abrasive Type(Alum. Oxide)
36- Grain Size
L- Grade
5- Structure
V- Bond Type (Vitrified)
23- Manufactures Record (Doesnt Matter) |
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Term
| How is the wheel grade specified? |
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Definition
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Term
| How is the wheel structure specified on a callout? |
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Definition
| 1(Highest density or Closed) to 16 (Open) |
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Term
| What does a open structure on a wheel provide? |
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Definition
| Provides plenty of chip clearance (Suitable for heavy stock removal |
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Term
| What is the most common type of bond in a wheel and what is its Cutting speed? |
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Definition
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Term
Diamond wheel callout meaning:
ASD-100-R-100-B-56-1/8 |
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Definition
-ASD: Abrasive Type(Armored Nickel)
-100: Grit Size
-R: Grade(Resinoid)
-100: Concentration
-B: Bond type (Resinoid)
-56: Bond Modification
-1/8: Depth of Diamond Section
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Term
| What is Type 1, 5, 7 Grinding wheels? |
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Definition
Straight Grinding Wheels
-1: Straight
-5: Recessed One Side
-7: Recessed Two Sides |
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Term
| What is a type 4 grinding wheel? |
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Definition
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Term
| What wheels are used exclusively on tool and cutters, and what wheel can be used on surface grinders and Tool and Cutters? |
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Definition
Flaring- Cup and Dish(Exclusively Tool and cutter)
Straight-cup (Used on both) |
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Term
| Saucer wheels are used for? |
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Definition
| Re-sharpening saw teeth (Also called saw gummer teeth) |
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Term
| What does glazing mean? and how would you fix glazing? |
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Definition
| The grinding wheel face takes on a shiny appearance. Meaning the abrasive grains are dull. Fix by switching wheel to softer grade. |
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Term
| What is loading? How do you fix it? |
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Definition
| Softer materials are filling up the spaces between the abrasive grain. Fix by changing to a softer grade w/ more open structure. |
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Term
| The type of abrasive used for grinding aluminum is? |
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Definition
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Term
| The type of abrasive used for grinding steel is? |
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Definition
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Term
| The type of abrasive used for grinding cemented carbide milling cutters is? |
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Definition
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Term
| In the designation: ASD 120 R 50 M 56 1/4. The 120 refers to? |
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Definition
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Term
In the wheel designation: 32 A 60 H 8 V.
The H refers to? |
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Definition
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