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|ISO Numerical Code|
|full face milling |
|tipped pcd inserts|
Insert Shape C
Insert Shape D
Insert Shape T
Insert Shape V
Insert Shape W
Home >> Tipped PCD inserts
Advantage of tipped pcd inserts over full faced pcd inserts is the lower cost, tipped insert is one use only economical type, it requires a carrier like tungsten carbide base as substrate for the insert, and substrate have a pocket that will accommodate and support the tip, the working tips are brazed to tungsten carbide base, 1~4 tips depends on different insert shapes, this braze joint of tipped pcd inserts represents the weak link not so good as full face pcd inserts, the maximum cutting depth is not more than 80% of the tip length, tipped pcd inserts could be used for fine to super fine precision machining, continous to interrupted machining, to obtain a good surface finish. As pcd is a polycrystalline form of diamond, so the cutting temperature is limited and could not exceed 700℃, also the work material has no affinity with carbon, pcd inserts are widely used for machining non ferrous metals of tungsten carbide, aluminum, copper, zinc; and non metals material of plastic, rubber, wood, ceramics.
There are different shapes of inserts available in the market. You should have detailed knowledge about all these shapes before you are going to buy.
1. C shape is the diamond shape (80 degree)
2. D Shape is also a Diamond shape (55 degree)
3. K Shape is a parallelogram in shape (55 degree)
4. R is for the round shape
5. S represents the square shape
6. T is for the triangle shape
7. V is another code for diamond shape (35 degree)
8. W represents the Hexagon (80 degree)
PCD insert shape C (80° diamond)
PCD insert shape D (55° Diamond)
PCD insert shape T (60° Triangle)
PCD insert shape V (35° Diamond)
PCD insert shape W (80° Hexagon)
superabrasives tooling tipped with synthetic polycrystalline diamond (PCD) has achieved a great reputation for productivity in machining nonferrous materials from 1970s, though tipped pcd inserts are more expensive than tungsten carbide inserts, inserts with pcd cutting edges have greatly increased the fine machining work parts, and the lifetime is about two hundred times than tungsten carbide inserts, clients can process thousands of work parts instead of hundreds without compensating for size offsetting before an insert replacement.
The pcd tipped inserts are mainly used for the turning and milling of the non-ferrous hard metals, These inserts are manufactured especially for different types of technologies and other advanced material processes. These are highly beneficial and have different characteristics and advantages. These are better and cheaper than that of full top surface pcd inserts and also offer a better surface finishing.
These tipped inserts are made of pure polycrystalline diamond and cannot be destroyed. It provides the best performance and offer hardness too. It also has a high wear resistant power with a long service life. They are also available in affordable prices and thus industries do not have to spend a lot over these inserts. It has a superior processing precision and with all these qualities and benefits, these inserts are grabbing a great position in market place worldwide.
WORK MATERIAL AND APPLICATION
|Aluminum||Automobile and motorcycle spare parts, engine, shell, bearing.|
Aircraft spare parts, shell, compression components.
Precision mechanical spare parts, hydraulic machine.
|Copper||Automobile, vehicles, ship spare parts, mandrel, gear, bearing parts.|
Electric machinery spare parts: electrical motor, commutator.
General mechanical spare parts: bearings, screws.
|Casting copper alloy|
|Cemented carbide||Sintered tungsten carbide mold|
|Non metals cemented||Solid wood and man-made plywood, organic materials.|
Acrylic, reinforced synthetic resin, stone, ceramics, etc.
Recommended cutting condition
|Cutting material||Cutting speed|
|Depth of cut|
|PCD||Aluminum and Aluminum alloy||200~3000||0.05~0.5||0.05~1.0|
|Non metals cemented||100~500||0.05~0.5||0.05~1.0|
pcd inserts with bigger diamond particles perform a greater abrasion resistance, but the cutting edge is rough.
on the other hand, smaller diamond particles offer the insert with a sharper cutting edge, it will get a superior workpiece surface finish, but less lifetime.
|Micro structure of PCD material||PCD inserts cutting with/without chip breaker|
PCD Grain size=5μ for turning of aluminium alloy with silicon content (Si<12%), the inserts are suitable for cutting graphite, carbon, plastic, rubber, rood, copper and bronze alloys, zinc. it provides a good surface finish, excellent wear resistance, medium impact strength.
PCD Grain size=25μ for rough to finish turning of aluminium with high silicon content (Si>12%), rough turning of highly abrasive composites, cemented tungsten carbide <12% cobalt, ceramics. it has high wear resistance and impact strength.
|Excellent surface finish of fine grain size||PCD grain size affects work piece surface roughness||PCD materials wear resistance comparison in different grain size|
Selecting the optimum grade of pcd tooling for a specific application is generally a function of surface finish requirements and tool life expectations. Material removal rates, tool geometries, and material characteristics also affect the relationship between machining productivity, tool life and surface finish.
|HOME||About us||PCD insert||PCBN insert||Site map||Contact us||Technical FAQ|
this page is for information only
We export PCD inserts to world wide countries, such as USA united states, Germany, UK united kingdom, Italy, France, Turkey, Russia, Saudi Arabia, United Arab Emirates, Ukraine, Israel, Canada, South Africa, South Korea, Japan, Australia, New Zealand, Finland, Sweden, Norway, Danmark, Switzerland, Poland, Czech,Ireland, Holand, Belgium, Greece, Croatia, Spain, Portugal, Egypt, India, Philippines, Cambodia, Thailand, Malaysia, Singapore, Indonesia, Mexico, Brazil, Colombia, Chile, Argentina etc.
Tap Drill size calculator (for inch size taps)
Go to: Inch tables Metric tables Acme BSP & BSPT Pg Handy Hints
INCH TAP DRILL SIZES
Recommended tap drill sizes (for approx. 75% thread)
INCH SIZES - NATIONAL COARSE
INCH SIZES - NATIONAL FINE
TAPER PIPE SIZES - NPT
STRAIGHT PIPE SIZES - NPS
link to Tap and Die page
METRIC TAP DRILL SIZES
Recommended tap drill sizes (for approx. 75% thread)
METRIC COARSE SIZES
METRIC FINE SIZES
PG Tap drill sizes
Suggested Drill Sizes
Newman Tool's Handy Hint.
For Metric sizes only. Diameter of thread minus the pitch equals the tap drill size.
eg. M6 x 1
6 - 1 = 5mm
and you thought metric was difficult ;-)
Thanks to Jay Steinbuchel of Barksdale Control Products for the following:
This works for all 75% threads, not just metric.
For example, the tap drill for 3/8-16 is 5/16.
The pitch is 1/16'. (1 / threads per inch = inches per thread)
3/8 - 1/16 = 5/16.
Tip Tap Soccer 1.5.0 – Online
For other sizes that don't work out so nicely, just use the closest drill size.
Tip Tap Soccer 1.5.0 – Live
tap drill size for acme taps
Based on a 100% of thread as per ANSI to calculate tap drill size for acme taps.the magic formula
1 Divided by TPI ( threads per inch)
subtract this amount from the OD.for pitches 10 and greater always add .005' for the drill size for pitches less than 10 TPI take the amount from step 1 and multiply x.05 ( 5 %) and add this to the drill size.This is for 95% to 100% threads.
1/10 = .100 ( step 1 ).500 ( the OD ) minus .100 ( from step 1) = .400 drill size . Since the pitch is 10 or greater add .005' so the drill size is .405'
Tip Tap Soccer 1.5.0 – 2
Tip Tap Soccer 1.5.0 – + -
1/6= .167'.750 - .167 = .583' ( 100% ).167 X .05 = .008' ( to obtain 5% ).583 + .008 = .591' ( 95%)
thanks to Mack from Widell
link to Acme Tap page
Suggested Tap Drill Sizes for British Standard Pipe Parallel (BSP)(BSPP) and British Standard Pipe Taper (BSPT)
| Nominal Size|
| T P I|| Major Diameter|
| Tapping Drill Size||Tapping Drill Size|
|Letter drill G|
| 8.8 mm||8.4mm|
| 11.8 mm||11.2mm|
| 15.25 mm||14.75mm|
| 21 mm|
| 24.5 mm||23.75mm|
| 28.25 mm|
| 30.75 mm||30mm|
Tip Tap Soccer 1.5.0 – Download
Tap and Dies Index Page
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