Term
| 4 Types of cutter materials? |
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Definition
HSS
Solid Carbide
Brazed-on Carbide
Indexable Carbides |
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Term
| Advantages of HSS over carbide? |
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Definition
-Tougher(Can handle side loading
-Cheaper
-Less rigidity, power and speed needed |
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Term
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Definition
-Run 3-6x faster than HSS
-Stiffer(Less Deflection)
-Can Machine harder material(More than 35 RC) |
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Term
| What is a disadvantage of a indexable insert? |
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Definition
| Increased Run-out(Inaccuracy) |
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Term
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Definition
-Straight Tungsten
-Titanium Carbide
-Coated Carbide |
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Term
| What type of carbide is more crater resistant but not as tough or wear resistant? |
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Definition
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Term
| What is the purpose of coating carbide? |
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Definition
| Increase wear resistance and act as lubricant |
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Term
| Factors in choosing the correct cutting tool material? |
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Definition
-Cost
-Rigidity of Setup
-Horsepower needed
-Workpiece material
-Sharpenability
-Production Quantity and speed |
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Term
| What does arbour mounted cutter normally have on it? |
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Definition
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Term
| Advantage of a arbour cutter? |
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Definition
-High MRR
-High Rigidity
-Higher Accuracy
-And Generally higher feeds(More teeth) |
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Term
| How is an arbour mounted cutter designated? |
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Definition
| Outside Dia., Width, and Bore Dia. in that order(ODxWxB) |
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Term
| Plain(Slab) mill types? and their helix angles |
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Definition
-Light Duty(15-25 degree helix)
-Heavy Duty (25-45 degree helix)
-High Helix Angle(45-60 degree helix) |
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Term
| Plain mill cutters do not cut where? |
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Definition
| on their side, only on their OD. Not for cutting a shoulder. |
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Term
| Side milling cutters can cut where? and what can they be used for? |
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Definition
| on their side and OD. Can be used for Deep slots and facing. |
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Term
| Types of side milling cutters? |
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Definition
-Plain
-Half-side(cutting edge on only one side and od)
-Staggered tooth
*CAN BE CARBIDE INSERTS OR HSS* |
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Term
| Types of angular cutters? |
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Definition
-Single angle
-Double angle |
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Term
| Types of double angle cutters and how are they sized? |
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Definition
-Symmetrical (Included angle between the 2 faces)
-Asymmetrical(Angle of each side) |
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Term
| Purpose of form cutters and types? |
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Definition
Cut Irregular shapes onto parts:
-Concave(Cut Convex)
-Convex(Cut Concave)
-Involute(Cut Gear teeth)
-Corner rounding |
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Term
| What type of involute cutter is needed for cutting imperial gears? Metric? |
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Definition
Imperial: Diametral Pitch Cutter
Metric: Module Cutter |
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Term
| Should you mount a slitting saw on an arbour w/ a key? |
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Definition
| No, let it slip to prevent pinching and breaking |
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Term
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Definition
-Plain
-Side tooth
-Staggered Tooth |
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Term
| Another name for 2 flute endmill and their ideal purpose? |
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Definition
| Slot/Mill drills. Good for cutting soft materials. |
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Term
| Max DOC on an endmill and roughing endmill. |
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Definition
Solid= 1/2 its Diameter
Roughing= same as diameter. |
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Term
| Purpose of shell endmills? |
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Definition
| For facing but can cut on OD aswell. Shank Mounted tool. |
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Term
| What type of endmill goes into a heavy duty collet chuck? |
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Definition
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Term
| What is the distinguishable difference between a t-slot cutter and a woodruff cutter? |
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Definition
| T-slot has staggered teeth unlike woodruff keys. |
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Term
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Definition
| Consists of one or more single point tool clamped to a special tooling. |
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Term
| What are some causes of cutter failure |
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Definition
-Excessive heat
-Abrasion
-Chipping
-Clogging
-Work Hardening
-Cratering
Built up edges. |
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