Questions tagged [drilling]

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4
votes
2answers
45 views

Is my aluminium drill swarf okay?

So I've been drilling standard 1/4" aluminium in a small (250W) consumer drill press. I've used a little oil to help, but I'm not sure if I'm doing it right. The holes seem okay though. They're 10mm ...
0
votes
1answer
17 views

mould for boring enclosures

For an electronics device that I make I use a standard plastic (I think polystyrene) enclosure. This enclosure needs to be precision-drilled, ant I lack the dedicated equipment. What I think would ...
0
votes
1answer
41 views

Basic Drilling/Production/Reservoir Engineering Terms

I am trained as a seismic geophysicist but really enjoy getting to translate what I know into what other people can understand and use for their applications, if necessary. For those with working in ...
0
votes
2answers
64 views

Terminology for drill component?

I built/assembled a small drill press recently and used a part from a Junk Drill because I couldn't figure out what a particular component I needed was called. What I was looking for was a way to ...
2
votes
2answers
92 views

In rock drilling, how does the drill pipe in horizontal directional drilling withstand the immense force?

Unlike vertical drills where the drill bit is weighted down by gravity, in horizontal drilling, the drill string is pushed into the rocks. How does the drill pipes not snap under the immense force, ...
4
votes
3answers
332 views

Can I use a wooden flat screw head with a washer to mimick a pan head screw?

For example - I am installing a fold up table from Ikea, it needs to hang from the wall, as shown below. It explicitly says to use pan head instead of flat screw heads like shown in the picture, I ...
2
votes
1answer
250 views

End mill vs Drill Bit Flute Geometry

What is the fundamental difference between the flute geometry of an end mill as opposed to a drill bit? Obviously drill bits are not intended to cut horizontally so what difference about them makes ...
0
votes
1answer
89 views

How Can I do punching of 0.22mm in stainless steel sheet (Sheet thickness 0.5mm)

Wanted to press punching of 0.22mm dia (Bottom) and on (top) 0.6mm dia Please suggest how can I make such die?
2
votes
2answers
107 views

Is there a drill adaptor or attachment tool for cut a metal solid cylinder

I need to cut a 7mm solid Aluminium plug (Non-hollow and non-threaded) to replace a part in my car. Is there a simple drill adapter tool to cut a solid metal cylinder (Plug) from an Aluminium mass ? ...
-2
votes
1answer
363 views

How much would a regular sized oil rig type platform cost to build?

How much would it cost to build an oil rig type platform, that floats like an oil rig, but doesn't have the functions of drilling oil and things like that? Basically what I'm trying to say is, how ...
0
votes
2answers
430 views

Read holes schematic drawing notation. How to? Particular case

I am asking here for your help and advice on how to read holes schematic notations. On the attached picture I've marked with a green color part of notation that I don't know how to read / understand. ...
1
vote
0answers
26 views

How do I configure g-simple so it does not use G81 code?

I have a CNC that does not understand the G81 code for drilling. G-Simple looks to be configurable but I am finding it difficult to find information on it. It looks to have a "USE" command with a "G81"...
2
votes
1answer
41 views

Meaning of “no mechanical delay required” in packer description (oil drilling)

This description of the Reflex Lite packer by Reactive states the following among its advantages: "No mechanical delay required" What could that mean? The packer has no built-in system of delayed ...
3
votes
1answer
2k views

Why are drill bits always slightly undersized?

I have found that drill bits are always slightly undersized. For example, 10mm bits tend to be more like 9.8mm diameter. And in aluminium, the hole ends up being about 9.9mm. The same seems to be the ...
4
votes
2answers
312 views

What diameter hole will a twist drill bit of a given size actually make in a piece of metal?

I have a piston of diameter 0.7 mm exactly and a 0.7 mm drill bit. Let's call the diameter of the piston $r_1$, the diameter of a hole at the end of a tube $r_0$, and the final-actual diameter of the ...
3
votes
7answers
4k views

How can I cheaply drill a 0.1 mm hole in a small piece of tungsten?

I have a 10 mm diameter rod of 99.5% pure tungsten that I want to drill a 0.1 mm hole in using my Grizzly G0768 lathe. The hole only needs to be between 0.1 mm and 1 mm deep and is for a 3D printer ...
-1
votes
1answer
115 views

What chuck arbor do I need for a Jacob's JT #33 chuck and G0768 grizzly lathe?

The chuck I have is: Jacob's 0-1/2" JT #33 The lathe I have is: G0768 I'm wondering what chuck arbor I need to buy / how to determine that. Related: the chuck has threads in its hole, but I see no ...
7
votes
2answers
897 views

Metal micro perforation

I'm trying to design a metal surface with micro-perforation for a product and light it from other side with LED, such that the perforated pattern appears only when lit. In my previous prototype, ...
-1
votes
2answers
164 views

Pratt & Whitney lathe drill chuck

I have an old Pratt & Whitney lathe and I need a drill chuck for the spindle sleeve. Does anyone know what kind of cone I need? It's definitely not a morse cone, since I already tested it. Since I ...
6
votes
2answers
598 views

How to drill larger bore in pipe?

I am trying to bore out a red brass pipe from 3/8" to 10mm using my drill press and a standard twist HSS bit. Running the drill at 600rpm I can't get more than half an inch in before the drill starts ...