Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
I have to drill 500 holes with a #1 drill (0.2280 dia.) in mild steel
in cramped quarters on a truck. I will have to drill these holes sitting and reaching out nearly arms length in front of me. It is very tiresome to put the proper pressure on the drill. I would like suggestions: 1. The best way to accurately position the drill (some kind of punch to dimple the steel?) 2. A way to put the pressure on the drill without the stress of applying all the pressure myself. Thanks for any suggestions |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Oh, forgot to say that the holes will be 3/4 inch deep.
|
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
If you have the space for it, rent a small magnetic drill.
-- C++: The power, elegance and simplicity of a hand grenade. |
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Can I ask why you are doing this?
"Eric Anderson" wrote in message ups.com... Oh, forgot to say that the holes will be 3/4 inch deep. |
#5
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
I was thinking the same thing. A magnetic drill seems to be in order here.
"Eide" wrote in message news:gxEKf.66269$bF.59618@dukeread07... Can I ask why you are doing this? "Eric Anderson" wrote in message ups.com... Oh, forgot to say that the holes will be 3/4 inch deep. |
#6
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
"Eric Anderson" wrote in message oups.com... I have to drill 500 holes with a #1 drill (0.2280 dia.) in mild steel in cramped quarters on a truck. 500? Whatever for? |
#7
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
"Eric Anderson" wrote in message ups.com... Oh, forgot to say that the holes will be 3/4 inch deep. Wow. I recommend sharp drill bits, and a mag drill. Also if you have a (insert ethnic slang here) laying around, that would be a good place to use him. |
#8
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
"Eric Anderson" wrote in message oups.com... I have to drill 500 holes with a #1 drill (0.2280 dia.) in mild steel in cramped quarters on a truck. I will have to drill these holes sitting and reaching out nearly arms length in front of me. It is very tiresome to put the proper pressure on the drill. I would like suggestions: 1. The best way to accurately position the drill (some kind of punch to dimple the steel?) 2. A way to put the pressure on the drill without the stress of applying all the pressure myself. Not sure if you can, but using a simple lever to apply pressure works very well. We have to do this at work in cramped situations. I'd highly recommend a good drill with a good chuck as you can actually apply a *lot* of force. I'd recommend square metal tube or wood as it's light and won't slip off the drill like round will. Good luck. Regards, Robin |
#9
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Fort Worth TX
Robin S. wrote: "Eric Anderson" wrote in message oups.com... I have to drill 500 holes with a #1 drill (0.2280 dia.) in mild steel in cramped quarters on a truck. I will have to drill these holes sitting and reaching out nearly arms length in front of me. It is very tiresome to put the proper pressure on the drill. I would like suggestions: 1. The best way to accurately position the drill (some kind of punch to dimple the steel?) 2. A way to put the pressure on the drill without the stress of applying all the pressure myself. Not sure if you can, but using a simple lever to apply pressure works very well. We have to do this at work in cramped situations. I'd highly recommend a good drill with a good chuck as you can actually apply a *lot* of force. I'd recommend square metal tube or wood as it's light and won't slip off the drill like round will. You might look at one of the 90-degree attachments that are available. The one I have is a $10 HF variety, but gives you about 6 inches more reach (no comment) and also a nice flat surface opposite the chuck against which to apply Robin's lever. |
#10
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Make sure you get the aluminum cased version of the 90, not the plastic
one. I have one of each, the plastic one has gears nibbled by beavers and bearings mounted in mush. Rex B wrote: Fort Worth TX Robin S. wrote: "Eric Anderson" wrote in message oups.com... I have to drill 500 holes with a #1 drill (0.2280 dia.) in mild steel in cramped quarters on a truck. I will have to drill these holes sitting and reaching out nearly arms length in front of me. It is very tiresome to put the proper pressure on the drill. I would like suggestions: 1. The best way to accurately position the drill (some kind of punch to dimple the steel?) 2. A way to put the pressure on the drill without the stress of applying all the pressure myself. Not sure if you can, but using a simple lever to apply pressure works very well. We have to do this at work in cramped situations. I'd highly recommend a good drill with a good chuck as you can actually apply a *lot* of force. I'd recommend square metal tube or wood as it's light and won't slip off the drill like round will. You might look at one of the 90-degree attachments that are available. The one I have is a $10 HF variety, but gives you about 6 inches more reach (no comment) and also a nice flat surface opposite the chuck against which to apply Robin's lever. |
#11
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
According to Eric Anderson :
I have to drill 500 holes with a #1 drill (0.2280 dia.) in mild steel in cramped quarters on a truck. I will have to drill these holes sitting and reaching out nearly arms length in front of me. It is very tiresome to put the proper pressure on the drill. I would like suggestions: 1. The best way to accurately position the drill (some kind of punch to dimple the steel?) 2. A way to put the pressure on the drill without the stress of applying all the pressure myself. I would like to suggest something which will help with both of these questions, though it is not what you really asked. First off -- how thick is the steel which you have to drill through? Unless it is unusually thick, I would suggest that you get a pack of screw-machine length cobalt steel drill bits with split points. 1) A split point tends to have a lot less tendency to walk than the normal chisel point. (And screw-machine length tends to be less flexible, so it is easier to control. 2) A split point does not require the force that a standard chisel point drill bit requires. so you will have a somewhat easier job of applying the needed force. Yes -- a center punch can help to give a tactile point to help control the location if you are drilling by hand. A magnetic base drill would probably help with both of your problems, if there is a good surface for the magnetic base to lock onto, but it will be expensive. Are you being paid to drill the holes, and are you likely to have to do more of the same job? If so, then it may still pay to get the mag base drill. Good Luck, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#12
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
"DoN. Nichols" wrote: (clip) First off -- how thick is the steel which you have to drill through? (clip) ^^^^^^^^^^^^^^^^ In his second post the OP specifies that the holes are to be 3/4 inch deep. |
#13
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
In answer to what we are drilling: This is a snowplow belly blade. A
grader blade under a 25,000 lb snowplow vehicle. We are attaching sensors that detect when the plow blade is down. It is being used in an AVL system. This stands for automatic vehicle location system. A fancy word for a way to track snowplow vehicles so dispatchers know what areas have been plowed and what areas have not. The blade tip is carbide, but the main blade area that supports the tip is just mild steel. We welded the sensor bracket on last time, but that was time consuming, required removeal of vehicle power and used a valuable welding resource that was not always available. We can use the same installers that are installing the rest of the electronics if we use threaded fasteners. The blade thickness in the area we are working is about 1 inch thick. We want to drill a 3/4 inch deep hole with a #1 drill which is the size called for for the thread rolling fastener we are intending to use. The quarters are cramped and we intend to use ramps to lift the front of the vehicle. I have talked to a company here in Michigan that sells mag drills (after you guys suggested it), but so far the chuck in the one I found takes a minimum drill size of 7/16, I believe. I was sort of surprised at this, but that was my 1st attempt. Some of the other ideas you-all suggested, such as a lever, would be a good idea if there was a consistant area to hook one end of the lever. Anyway, I hope that explains some things and maybe primes you to come up with even more ideas to consider. |
#14
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Hey Eric,
I can't say that I fully understand what it is that you are doing, but it soumds more and more like a stud-weld would do the job. A quick Google gets: http://www.internationalwelding.com/g-1.html XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX On 22 Feb 2006 03:54:11 -0800, "Eric Anderson" wrote: In answer to what we are drilling: This is a snowplow belly blade. A grader blade under a 25,000 lb snowplow vehicle. We are attaching sensors that detect when the plow blade is down. It is being used in an AVL system. This stands for automatic vehicle location system. A fancy word for a way to track snowplow vehicles so dispatchers know what areas have been plowed and what areas have not. The blade tip is carbide, but the main blade area that supports the tip is just mild steel. We welded the sensor bracket on last time, but that was time consuming, required removeal of vehicle power and used a valuable welding resource that was not always available. We can use the same installers that are installing the rest of the electronics if we use threaded fasteners. The blade thickness in the area we are working is about 1 inch thick. We want to drill a 3/4 inch deep hole with a #1 drill which is the size called for for the thread rolling fastener we are intending to use. The quarters are cramped and we intend to use ramps to lift the front of the vehicle. I have talked to a company here in Michigan that sells mag drills (after you guys suggested it), but so far the chuck in the one I found takes a minimum drill size of 7/16, I believe. I was sort of surprised at this, but that was my 1st attempt. Some of the other ideas you-all suggested, such as a lever, would be a good idea if there was a consistant area to hook one end of the lever. Anyway, I hope that explains some things and maybe primes you to come up with even more ideas to consider. |
#15
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
On 22 Feb 2006 03:54:11 -0800, "Eric Anderson"
wrote: I have talked to a company here in Michigan that sells mag drills (after you guys suggested it), but so far the chuck in the one I found takes a minimum drill size of 7/16, I believe. I was sort of surprised at this, but that was my 1st attempt. Can you find (or make) a threaded insert to compensate for the difference between 7/16 and the #1 drill you wanted to use? |
#17
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
On 22 Feb 2006 03:54:11 -0800, "Eric Anderson"
wrote: In answer to what we are drilling: This is a snowplow belly blade. A grader blade under a 25,000 lb snowplow vehicle. We are attaching sensors that detect when the plow blade is down. It is being used in an AVL system. This stands for automatic vehicle location system. A fancy word for a way to track snowplow vehicles so dispatchers know what areas have been plowed and what areas have not. The blade tip is carbide, but the main blade area that supports the tip is just mild steel. We welded the sensor bracket on last time, but that was time consuming, required removeal of vehicle power and used a valuable welding resource that was not always available. We can use the same installers that are installing the rest of the electronics if we use threaded fasteners. The blade thickness in the area we are working is about 1 inch thick. We want to drill a 3/4 inch deep hole with a #1 drill which is the size called for for the thread rolling fastener we are intending to use. The quarters are cramped and we intend to use ramps to lift the front of the vehicle. I have talked to a company here in Michigan that sells mag drills (after you guys suggested it), but so far the chuck in the one I found takes a minimum drill size of 7/16, I believe. I was sort of surprised at this, but that was my 1st attempt. Some of the other ideas you-all suggested, such as a lever, would be a good idea if there was a consistant area to hook one end of the lever. Anyway, I hope that explains some things and maybe primes you to come up with even more ideas to consider. Well besides the mag drill you can also make a dead man that you can clamp to the blade. Put a screw in it to feed the drill into the work. Another method would be to get one of those drill press stands for portable drills and clamp it to the blade. You might get some ideas from my web site. Here's a pic of me using my air drill with a dead man. http://www.metalworking.com/DropBox/...xtension07.jpg In this case the jack screw is in the drill but it's possible to do it the other way around. |
#18
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Hi Eric...
Here's my two cents. At work, we have to drill holes in frames all the time to install hitches. We use a regular floor jack that has a weird plate that cradles the drill and we use it to press it upwards into the truck. works awesome. good luck - Loren. |
#19
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
Loren wrote:
Hi Eric... Here's my two cents. At work, we have to drill holes in frames all the time to install hitches. We use a regular floor jack that has a weird plate that cradles the drill and we use it to press it upwards into the truck. works awesome. good luck - Loren. The U-Haul trailer rental shop nearby has a tool made just for that job. IIRC it was like an inverted drill press with a long lever. Fred |
#20
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
I sent a message to this company. Looks interesting.
|
#21
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
I don't have a place to grab hold of the blade, but your dead man made
me think of a real small drill press and a couple of magnetic bases like used for dial indicators. I wonder if I could get enough strength from a couple of those? The drill press would have to be about the size of a large cordless drill with a base plate about 6" square maximum that the magnetic bases would be mounted on. Anybody have a specific product that would complete this idea? |
#22
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
On 22 Feb 2006 17:13:35 -0800, "Eric Anderson"
wrote: I don't have a place to grab hold of the blade, but your dead man made me think of a real small drill press and a couple of magnetic bases like used for dial indicators. I wonder if I could get enough strength from a couple of those? The drill press would have to be about the size of a large cordless drill with a base plate about 6" square maximum that the magnetic bases would be mounted on. Anybody have a specific product that would complete this idea? Well there are permanent magnets out there strong enough. However you'd need such a strong magnet that it would be almost impossible to move it. Figure a minimum of a 1000 lb pull magnet to do any real good. What you really need is a the right magnetic drill. From the sounds of it the ones you called about are made for annular cutters. There are models out there that just have a drill chuck. This is the one you want. http://www.milwaukeeconnect.com/weba...164_189341_362 |
#23
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
"Wayne Cook" wrote in message ... On 22 Feb 2006 17:13:35 -0800, "Eric Anderson" wrote: I don't have a place to grab hold of the blade, but your dead man made me think of a real small drill press and a couple of magnetic bases like used for dial indicators. I wonder if I could get enough strength from a couple of those? The drill press would have to be about the size of a large cordless drill with a base plate about 6" square maximum that the magnetic bases would be mounted on. Anybody have a specific product that would complete this idea? They make an adapter for a standard drill motor that holds it like a drill press. It's small enough you may be able to clamp it to your work with C clamps. |
#24
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
This is a definite mag drill job.
Check out the Milwaukee line, but for what you are doing you could get by just fine with a smaller Jancy mag drill- I have a Jancy JM 101, and it is plenty to do this job, but 10 to 20 pounds lighter than a big milwaukee, and after a couple hundred holes, you are gonna be mighty happy about that. Plus you save 500 bucks or so. http://www.jancyslugger.com/index.cf...producti d=56 You buy the drill chuck as an accessory- we routinely use our chuck to drill holes to tap 10/24, so it will handle a bit the size you want no problem. |
#25
Posted to rec.crafts.metalworking
|
|||
|
|||
Drilling 500 holes in mild steel
In article .com,
says... This is a definite mag drill job. Check out the Milwaukee line, but for what you are doing you could get by just fine with a smaller Jancy mag drill- I have a Jancy JM 101, and it is plenty to do this job, but 10 to 20 pounds lighter than a big milwaukee, and after a couple hundred holes, you are gonna be mighty happy about that. Plus you save 500 bucks or so. http://www.jancyslugger.com/index.cf...producti d=56 I borrowed a Jancy like that for a job that required crawling around inside a big hydraulic press and putting holes in some awkward spots. It was much easier than hauling around a 60# monster. One thing it doesn't have is a fine adjustment for tweaking position after the magnet is turned on. Ned Simmons |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Drilling holes Correcting mistakes in hole locations | Metalworking | |||
Drilling strainless steel | Metalworking | |||
Drilling Iron | Metalworking | |||
drilling steel? | UK diy | |||
drilling steel? | Metalworking |