Boredom is really a simple procedure when the extension of an existing hole is the only goal. And we don’t have to worry about the other parameters of the tool. But if you have to think about a certain size with a strict tolerance, then everything counts.
From the selection of the boring bars to the removal of the chips, everything must be accurate and valuable. That’s what they say: It’s good to have a little OCD if you want to get just the right amount of boredom in the trick.
For perfect drilling performance it is important to know how the drill pipe is used. Today’s article focuses on the use of a boring bar on a lathe.
You can also read:
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Let’s get on with it.
Use of a boring rod on a lathe
Boredom is a kind of basic twist. It is necessary for successful work according to different procedures. So we’re gonna talk about the procedure for using a boring bar on a lathe.
Step 1: Drill rod selection
There are three types of boring bars with their own specifications and advantages.
High-speed steel (HSS)
HSS is cheaper and stronger. When the cutting edges are worn out, it can easily be resharpened on a standard grinding and overlap rail.
Carbide soldered drill plate
It can cut 2.5 to 5 times faster than HSS. This means it can withstand a lot more heat. Solder carbide has a stiffness modulus that is 2.5 times greater than that of steel. But when the cutting edges are worn out, this type of hole is either regenerated (which is very difficult) or eliminated.
Carbide reversible cutter bar
It is similar to HSS, but if the radius of the cutting edge has a smaller angle, a better surface roughness is obtained. It also provides a more accurate hole size. The cutting edge with a large angle radius is well adapted to the blank.
So choose the ideal boring rod according to your operational precision. Hardness is the key to a boring process. For greater rigidity it is therefore ideal to use a drill pipe with the largest diameter and shortest extension length.
Step 2: Drilling measurement
Determining the exact dimensions of the boring rod is also necessary when using a lathe. Because the requirements differ per product. The choice of the ideal format of the strips therefore ensures an accurate result.
Measurement of the cutter bar can be carried out with various tools:
- Digital dialer or yoke
- Fence with small hole
- Measuring needles
- Drill sizes
- Telescopic sensors
Step 3: Belt adjustment
The steps required to set up a tire are listed below:
Normally there are no centered planes on the boring bars. Therefore, the top of the cutting edge must be aligned parallel to the XZ plane of the lathe.
There are three possible drilling directions. These are negative, neutral and positive rakes. Of these three, neutral is the safest. However, if you want to try one of the other alignments, you must set the reference point on the vertical axis of the spindle.
Make sure you have enough space for your intersection.
For cutting weaker materials such as aluminium and plastic it is best to use a positive rake. And use negative letters for stronger materials, such as high-strength steels.
The height, another important parameter when setting a drilling tool for a lathe. Choose a boring rod that is sufficiently adjustable in height. This means that it should be as close as possible to the vertical axis of the spindle.
Be very careful when setting up the bar. If the drill string does not rest on a vertical centerline, it will certainly not be the desired size. Not only will you regret a malfunction, but you will also permanently damage the tire.
Step 4: Selection of cutting parameters
These are the factors to take into account before selecting the parameters:
For cutter bars, the desired cutting speed must be half the calculated value. But if the tool life allows it, you can always work at a limited speed above a typical value.
Like the cutting speed, the cutting depth is an important parameter for the cutter bar. On a puke lathe, the angular radius is twice as large as the radius considered to be the maximum safe cutting depth.
Depending on the material, a cutting depth of 0.1-0.2 mm is considered the safest. And about 0.002-0.005 mm is the minimum cutting depth, depending on the material.
Keep in mind that below the minimum cutting depth a very controversial format and design is created. Because the transition between cutting and lubrication of the tool remains constant.
The fourth radius of the angle is the maximum feed rate of the drill rod.
For successful and accurate work, it is always useful to know certain tool parameters before starting work. This also makes the operation much easier.
I hope this article will help you if you’re trying to use a boring bar on a trick.
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