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Machine Tools
Machine tools is the term used for the machinery used in engineering workshop for manufacturing metal products and parts. These machines include: Lathes, milling machines, CNC lathes and machine centers, Horizontal and vertical boring mills, slotting machines, shapers, radial arm drilling machines, gear cutters and grinders, power saws, etc.
544 Questions
Why a lathe is called an engine lathe?
Lathe is power driven machine,which is used for many operation such as reduction in length,dia and enables threading,surface finishing operations etc which are the basic operations to be carried out for the component.
What are the main function of headstock in a Centre lathe?
The basic functions of the headstock are:
- Houses the gearbox that is driven by the motor and its lubrication mechanism
- Enables selecting spindle and feed speeds
- Drives the feed rod and lead screw
- Houses the main spindle to which the chuck is attached
- Allows alignment to bed ways
What are ways of laying out the marking out shapes or patterns to maximise use of materials?
You can cut patterns to size and arrange them on the material to be cut. CAD programs perform this operation and are used on LASER, PLASMA, WATER CUTTING and punch machines. Most companies here in the U.S. use CAD.
What is D code in cnc machine?
The D-code on a CNC is used for the tool diameter offset number. This number is programmed in to CNC and basically tells it where the tip of a specific cutting tool is located.
What are the factors that contribute to the cutting tool efficiency of a single point cutting tool?
taik kuceng
Why is the spindle on the lathe hollow?
The hollow spindle of a lathe allows for longer lengths of material to be held in the chuck thus eliminating constant material changing to and from the lathe in production turning. The best advantage is the saving in material costs. If one had to manufacture 20 bushings and they were all cut into separate billets, half of the material would be lost because the chuck needs some material to grip the work piece on.
If for example 20 bushings of 50mm OD by 50mm long have to be made, one would need a piece of material of at least 1150mm long. A single shaft or hollow bar of this length can usually be stuck into the hollow spindle with only enough material sticking out to make one or two bushings at a time. Once they are parted off, the material can simply be pulled out and the next one or two bushings can be machined. In the end the wastage will only be a piece of material of 70mm long instead of 20 pieces of 40 or 50mm long without a hollow spindle.
What is the function of a tool room lathe?
There are a number of different types of lathe. We usually separate them out by whether they are for wood or metal (and other stuff like plastic). The things is, they all do essentially the same thing: they turn a workpiece between two centers and allow the user to apply a tool to remove material from the rotating mass of "stuff" being worked, or, as is said by those involved, turned. The earliest lathes did thi - turned the work so a tool could be used on that material. And we do it pretty much the same way today. The metal lathe most often has a chuck on the headstock (the driven end) in which work can be clamped, and this affords an "open end" on the material so it doesn't have to be supported at the "tail end" of the lathe to work the material. (You aren't turning between centers.) A number of metal lathes are computer controlled (the so-called computer numeric controlled or CNC machines), and they can do a lot of things very quickly and with a high degree of accuracy. And all if it is repeatable. Need some pistons made for your engine? We can do that. Many wood lathes have a faceplate attachment that a wood turner can affix a chunk of wood to so he can turn, say, a bowl. That way the wood can be supported on just the one end and the bowl can be hollowed out. There are lots of wood turners out there, and they make some fabulous stuff. We often say, "I'm turning (something) on a lathe." It could be a wooden bowl to mix pie dough in or a rolling pin for rolling out that pie dough. Certainly it could be any one of a zillion machined parts for aircraft or automotive applications, or just about anything else. There are a lot of things we use every day that have been turned on a lathe, though many of them may not be where we can see them, like a number of engine parts in a car. The largest part of the lathe (almost always) is the bed of the machine. It is the "frame" onto which the headstock and the tailstock are fastened. The headstock has in it the rotating (driven) spindle on which a chuck or faceplate can be fastened. On the bed, the top of it is generally machined to create the ways on which the tool rest or (in the case of a metal lathe) the carriage(with its cross slide and tool post) can sit and move precisely along the length of the bed. There are some other parts and a host of attachments to the lathe. Pictures may very well help you see things. Links are provided to the Wikipedia articles on the lathes, and a link is provided to some "lathe" video clips put up on YouTube. There are a lot(!) of short posts there on lathe work. Check a few out.
What is the difference brtween vertical milling machine and horizontal milling machine?
A "horizontal maching center" has a horizontal spindle. With a horizontal spindle, tools stick out the side of the tool holder and cut across the side of a part (workpiece). Horizontal machining centers are far more expensive than equivalent capacity vertical machines, but have several advantages. Usually the tool holder of a horizontal machine is more ridgid. Also,when machining the side of a part, metal chips fall out of the area being cut, leaving an uncluttered cutting area.
A "vertical machining center" has a vertical spindle. With a vertical spindle, tools stick straight down from the tool holder, and often cut across the top of a part. One disadvantage of vertical machining is that when tools cut across the top of a part, the metal shavings, called "chips," often pile up around the tool and interfere with the cutting action. However, vertical machining centers are more common, primarily because they are less expensive than equivalent capacity horizontal machines.
What are the 7 standard machine tools found in machine shop?
Some of the different types of machine tools that can be found in a machine shop are:
- Center lathe
- Milling machine
- Shaper
- Horizontal boring mill
- Vertical boring mill
- Radial arm drill
- Slotting machine
- Cylindrical grinder
- Gear grinder and Gear shaper
- Various types of CNC: Lathe, machine center, milling machine, etc.
Why this cnc machines are used?
the cnc technology is applicable for high accuracy machining and high speed machining,it si more efficient than the conventional methods like lathe,driller,etc..by the application of cnc the production time can be reduced and there by increase the productivity and profit .
tool post is used to handle the tool on the lathe machine
How pass line is calculated in hot rolling mill?
Rolling schedule is the time sequence of passes of rolled piece through the mill respecting many constrains and limitations such as:
- * Limit separating force
- * Limit rolling torque
- * Bite angle
- * Flatness limits
- * Metallurgical limits
- * Specific limits(length of delay table, etc.)
If all constrains are fulfilled and rolling schedule gives maximum productivity (minimum production time) and the desired product and its specifications are obtained, we can speak about optimum rolling schedule.
What are the Cutting tools on Lathe machine?
Now a days verities of materials are using for making lathe cutting tools. In earlier days Hardened high carbon steelswere used. High Speed Steel (HSS) came next to HCS. Ordinary carbide inserts of different grades came after HSS. Coated carbide inserts of various grades suitable for machining different metals and alloys are predominant now. Ceramic and diamond inserts are the latest cutting tool materials using for the machining of materials having very high hardness.
How do you make an inside taper on a lathe?
These are the basic steps used to machine an inside taper on a lathe:
- The required boring bar is inserted into the tool post and the work piece is bored to the smaller size of the taper
- The tool post is set to the required degrees (the boring bar angled towards the work piece)
- Using the tool post slide (or compact slide) hand wheel, it is turned in a counter-clockwise direction to allow enough travel over the entire taper length
- Now the tool tip is moved towards the edge of the workpiece bore with the carriage and cross slide hand wheels
- At this point the tool post slide hand wheel is used and turned in a clockwise direction to start cutting the taper a few millimeters at a time until the taper is roughly 2mm undersize
- Mechanical blue is put onto the mating test piece then the test piece is inserted it into the taper to check if the degrees match. Where there is more rubbing, the tool post degrees are slightly adjusted by using a dial indicator and a note of the adjusted amount set is made.
- Another cut is made and the taper is re-tested using the same method. If it requires further adjustment, the process of adjusting the angle with the dial indicator is repeated and. The dial indicator is placed in the exact same spot as before.
- When the taper matches the test piece, the final cuts are done with a very smooth, continuous motion on the tool post slide hand wheel.
- The workpiece may be retested with test piece after every cut to ensure precision of the final piece.
The above method is just a basic explanation of how the operation is achieved. Operating a lathe without proper training is not recommended and could lead to serious injury!
Why cast iron used for bed of lathe?
Any solid material that is capable of cutting ferrous metals are used, but if the family is the most iron.
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Cast iron is less prone to warping than other metals.
This refers not to the machining of cast iron, but the use of cast iron as the bed of the lathe.
Yes, more housing is made of cast iron industrial machines.
Because iron does not tolerate the stress.
Its ability to cause melting and casting, the theme is good.
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I assume the question asks why cast-iron is the main material for making the lathe - and in fact most machine-tools.
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It is easy to machine and gives very good bearing surfaces such as the shears on the lathe bed; thanks to its inherent "self-lubricating" and oil-retaining property due its granular structure of iron crystals interspersed with those of graphite - you soon find the graphite when you machine the stuff!
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It has a damping effect - it is not as resonant as steel so reduces vibration.
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Re-writing the first respondent's last sentence as I think he meant: it melts at a relatively low temperature, and its low viscosity when molten greatly facilitates casting intricate shapes.
What is the name of a person who operates a milling machine?
A person who operates a milling machine is called a milling machine operator, milling machinist or a machinist.
What is the difference between b tooling and d tooling?
B tooling is having head and body more than d tooling
As b has 1.5 & length of 5.13 body 1 inch
d has 1 inch head and length 5.13 body 0.73
Although a lathe can bore and drill, it is actually associated with turning.
A drilling machine is associated with drilling, a milling machine with milling, and a boring mill with boring.
What tools do you use to change an alternator on a 93 Saturn SL1?
You'll need some metric sockets. 3/8" drive will be fine. Maybe a small extension and the ratchet. Not to many tools involved.
What are the types of tool post?
the types of tool post on lathes can be classified as
single screw tool post
four bolt tool post
open side tool post
four way tool post
What is sales tax rate in Madison county Alabama?
It really depends on where in Madison County you are asking about. The county has a standard 1/2% rate, the state has a 4% rate, and each municipality has their own rate on top of that. So, for example, Huntsville's rate is 3.5% so the total tax in the city limits is 8% after you add the city tax rate, but rural areas are 5.5%. There is ongoing debate however on raising the county tax there 1/2% and the state is considering removing the 4% rate on food only.
