Drill Bit For Aluminum Plate

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FAQ

How to allocate the electric hammer drill
There may be a problem that the pearl inside the chuck. The drill down, pressure head black chuck, a few more to return a bit range.
What measures can be taken to prevent the bit from breaking?
I. to drill through, reduce the pressure. Slow down. Two. Drill the bit into a group
How do you drill a drill?
1 used to hand as a fulcrum, hold the drill, the other hand holding drill tail;2 bit cutting edge level against the wheel at the level of the outer edge of the cutting edge and the edge of the wheel angle is about 60 degrees or smaller (standard 58-59 degrees);
Is there a standard for drilling errors due to machine tool shaking?
Is the drill drill a positive or negative deviation, or is it bigger or smaller?. Bit wear is not serious, the drilled hole is a positive deviation. If the drill is used for a long time, the ligament is worn badly and the drill is worn out too, and the hole drilled is a negative deviation
What drills should be used to drill holes with diameter 5mm and depth 65mm? Urgent! Thank you!
You don't know what material you need to drill, what is the material, or how hard it is,Ordinary material on the ordinary line, and if the material hardness, then you have to use M35 cobalt or alloy drill.
What kind of steel do you need to drill?!
Drills are usually made of cemented carbide. The so-called carbide is based on tungsten carbide powder as a matrix, cobalt powder as binder, by compression and sintering. Usually containing tungsten carbide 94%, cobalt containing 6%. Because of its high hardness, very wear-resistant, has a certain strength, suitable for high-speed cutting. But the poor toughness, very brittle, in order to improve the performance of the hard alloy, with some hard carbide titanium carbide substrate in chemical vapor deposition of a layer of 5 to 7 microns (TIC) or titanium nitride (TIN), which has higher hardness.
Is the drill fast to feed, easy to break, or slow to feed, easy to break?
The drill bit is fast to slow to feed off constantly does not matter much, mainly is the workpiece to be fixed, fixed, easily broken drill bit is tilted, fast heating feed is not easy to burn a bit empty, but also from the new rules, the drill bit, drill feed uneconomical, slow hair less heat, drilling accuracy high
M2.5 hit the bottom teeth with much bit
Then, the chip 2.5-0.45=2.05 is used to tap bottom drill bit drilling. If it is an extrusion tap, the formula is 2.5-0.45/2=2.275's drill.