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Posts Tagged ‘machines’

Panel Cutting Machines is a tool that is used to remove material from the workpiece by means of shear deformation. Cutting may be accomplished by single-point or multipoint tools. Single-point tools are used in turning, shaping, planning and similar operations, and remove material by means of one cutting edge. Milling and drilling tools are often multipoint tools. Grinding tools are also multipoint tools. Each grain of abrasive functions as a microscopic single-point cutting edge (although of high negative rake angle), and shears a tiny chip.

Cutting tools must be made of a material harder than the material which is to be cut, and the tool must be able to withstand the heat generated in the metal-cutting process. Also, the tool must have a specific geometry, with clearance angles designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the workpiece surface. The angle of the cutting face is also important, as is the flute width, number of flutes or teeth, and margin size. In order to have a long working life, all of the above must be optimized, plus the speeds and feeds at which the tool is run.

è Different types of the Cutting tools

Single-point cutting tools can be classified by their motion as linear or rotary, depending on whether they rotate while cutting. Linear cutting tools include tool bits (single-point cutting tools) and broaches. Rotary cutting tools include drill bits, countersinks and counterbores, taps and dies, milling cutters, and reamers. Other cutting tools, such as bandsaw blades and fly cutters, combine aspects of linear and rotary motion.

è Replaceable Cutting tools

Cutting tools are often designed with inserts or replaceable tips (tipped tools). In these, the cutting edge consists of a separate piece of material, either brazed, welded or clamped on to the tool body. Common materials for tips include tungsten carbide, polycrystalline diamond, and cubic boron nitride. Tools using inserts include milling cutters (endmills, fly cutters), tool bits, and saw blades.

è Materials used in the Cutting tools

Cutting tools are made using a variety of materials and the selection of a cutting tool material depends on a variety of factors.

To produce quality parts, a cutting tool must have three characteristics:

* Hardness — hardness and strength at high temperatures.

* Toughness — toughness, so that tools don’t chip or fracture.

* Wear resistance — having acceptable tool life before needing to be replaced.

Cutting tool materials can be divided into two main categories: stable and unstable.

Unstable materials (usually steels) are substances that start at a relatively low hardness point and are then heat treated to promote the growth of hard particles (usually carbides) inside the original matrix, which increases the overall hardness of the material at the expense of some its original toughness. Since heat is the mechanism to alter the structure of the substance and at the same time the cutting action produces a lot of heat, such substances is inherently unstable under machining conditions.

Stable materials (usually tungsten carbide) are substances that remain relatively stable under the heat produced by most machining conditions, as they don’t attain their hardness through heat. They wear down due to abrasion, but generally don’t change their properties much during use.

Most stable materials are hard enough to break before flexing, which makes them very fragile. To avoid chipping at the cutting edge, most tools made of such materials are finished with a slightly blunt edge, which results in higher cutting forces due to an increased shear area. Fragility combined with high cutting forces results in most stable materials being unsuitable for use in anything but large, heavy and stiff machinery.

For more information on Panel Cutting Machines you can visit http://www.homag-india.com/

Related Welding Bandsaw Blades Articles

Welding Machine is equipment, which is used to weld or joint two metals or alloys together using another metal component as filler. Usually structure-less metals and alloys are joint using welding machines to give them desired shape and make them sturdier than they would be if it were a single piece.

These machines are available in different sizes as per their utility. A large size machine would be used in a factory and a handy machine is available for domestic purpose. Types of machines that are available in the market vary from Arc welding machine, Fusion-welding machine, Plasma Cutting machine, Resistance welding machine, Solid State Welding machine and less known types are Induction and Thyristorised welding machines.

Among all the types, Arc type machines are the most efficient and effective. According to the type of material used to weld, they are broadly classified into three categories.

Common most is the Manual Metal Arc mechanism. The tool looks like a stick, which performs the function of a main electrode, and it is covered by a flux that prevents it from oxidization. With the help of electricity, the electrode melts itself continuously for welding the metal. This equipment is mostly used for small tasks. This kind of machine is usually used in construction industry, maintenance and repair of small metals, cutting and making holes in steel products and rebuilding fixtures.

Second form is a Metal Inert Gas mechanism which is a large bobbin like formation. It is a single piece of equipment that includes a mix of argon or helium gas or both used along with the heated electrode to camouflage the metal from rusting. This makes the task easy and quicker. Metal Inert Gas equipments are mainly used in shipbuilding, power plants, aerospace equipments, automobile industry, bridge constructions and refineries.

The third kind is Tungsten Inert Gas, which has a single electrode, and the protective material is provided by another resource. The electrode does not thaw out as it has an additional tool to give it protection. This type of mechanisms is used in large factories where it is impossible to use other type of welding machines. Principally, Tungsten Inert Gas machines are used in power plants, construction industry, aerospace industry and manufacturing industry for more robust and specialized welding.

Apart from these, other type of welding machines that are available in the market are:

Carbon Arc, which is used for welding alloy steel and water jet cutting.
Orbital or Tube Arc is used in casting, shipbuilding, automotive industry etc.
Plasma Arc is used for welding of surgical instruments, food industry, dairy industry etc.
Stud Arc is mostly utilised in fabrication and machining.
Submerged Arc is chiefly used in industrial welding and pipe welding.

Any industry usually uses a combination of any of the above machines as per requirement. Welding machines are easy to use but is a complex piece of machinery and hence should be operated under expert guidance.

As most of us are knowledgeable of, MIG welding machine is a semi-automatic arc welding work in which a perpetual, breakable conductor electrode and a defending gas are supplied by implementation of a welding gun. On the tip of the gun, there is a conjunction end which delivers electrical energy to the wire. Mutually, the shielding gas and the wire are set in movement to create the weld when the mechanic lowers the induction of the gun.

On the separate ability, there are advantages as well as disadvantages of MIG welding machines. Read on and discover from the succeeding areas of MIG welding.

Advantages of MIG welding machine

MIG welding is evenhandedly well-liked as it is individual to benefit noesis of and calls for no exceptional skillfulness. Even a first-timer operational will be competent to accomplished a high-quality weld with smallest quantity of use.

A lot of grouping holds MIG welding machines; it is an extraordinary time-saver. Hence, the working cost of MIG welding is decrease than Stick welding because of this circumscribe of indication. MIG regulates to several degree of electrode length and permits for long welds with lesser disruptions and intervals.

In addition, there is also no utilization of filler metals and thinner materials are welded with no hassle with MIG welding machines. It is also an orderly work and does not require chipping scum. This certainly makes for extremely eligible weld tacking and furnishings of parts and there is improbably slight scrape thrashing because of the incessant revolve of filler metal.

MIG welding is doubtless convertible and competent for a variety of claims, including – automobile body amend and improvement, trailer hitches, unit projects, farm/ranch equipment repairing machine barrows, bicycles, and others. This kind of welding insists not as more of lasting term when compared to advance sorts of welding procedures.

Disadvantage of MIG welding Machines

The origin outlay of service up a MIG welding machine is soaring considering the shielding gas and regulators though a few MIG welding may be finished with self-protecting compactness core and without controller or gas.

In the MIG process, various materials need various gases and wire. Plus, it is not advisable to weld through grimy materials with MIG machines.  MIG welding should constantly weld on the cleanest material.

MIG welding machines are also many multifarious, expensive and fewer moveables and the welding gun are solid to move. The filler metal can be knotted within the wire feeder making the functional appear roiled and also adding up to downtime. The operator has to uncomplainingly maintain liners and leads in a continuous line or position to hold for appropriate of filler metal.

MIG welding happens when an electrically charged wire is fed into the welding arc. MIG is ordinarily favorite for the conclude that the welding leads are often simple to carry out. In measure of fact, it is said that even robots can be used to accomplish the motorized job realized. MIG welder machine is competent of working with most of all kinds metals; even if mild brace and aluminum are the most in style ones.

Nirmala Engineering Works is a hardcore company which has established itself as a marked up manufacturer of Wire Drawing Machines like Rod Break down Machine (RBD- Tandem & Step cone type), Intermediate Wet Wire Drawing  Machine, High Speed fine wire drawing machine, Fine wire drawing machine upto 50 swg and wire drawing accessories like Butt Welding Machine, Wire Annealing machine, Wire dies, Pointing cum threading machine, Spooler, etc suitable for Copper, Aluminium, Nichrome & Brass Wire.

Nirmala Engineering Works is a huge company engaged itself in the manufacturing of all types of wire drawing machines. It offers the most inclusive range and competitive price of Wire drawing machines to its customers. Nirmala Engineering Works focuses on present need of the wire and cable industry and provide solutions to all Industry’s different sectors through production of all types wire drawing machines like Rod Break Down Machine, Intermediate Wire Drawing Machine, Wire Annealing Machine and wire drawing machine accessories etc suitable for Copper & Aluminium wire.

Nirmala Engineering Works has a good industry experience which helps them to manufacture world class Wet Wire Drawing Machines. Nirmala Engineering Works has manufactured and supplied all types of wire drawing machinery to its local as well as international customers based world wide.

Rod Break down Machine manufactured by Nirmala Engineering Works is in great demand these days by whole Wire and Cable Industries. Similar case is with other wire drawing machines as these industries serves as a core base to the industrial era.

Basically , There are two models of Rod Break Down Machine namely- Tandem type & Step cone type. These two models are identical  except  the  number  of  Rod Breakdown Machine they use . Which rod breakdown machine is most suitable to you depends on the inlet diameter of the copper & aluminium and the Diameter of the finishing wire you would like to make.

Under normal situation , the RBD inlet should be 8.0mm of copper or 9.5mm for aluminium, the rod breakdown machine is outlet should be from 1.30mm to 3.5mm. By the evaluation of inlet and range of the outlet, we also calculate the Rod Breakdown Machine Sequence Table for our customers. This rod breakdown machine is a valuable function since we guarantee our customers can have the Rod Breakdown Machine sequence table with the minimum number of Rod Breakdown Machine. Rod Break Down Machine guarantee the minimum material loss. Which means, you save not only the materials (either copper or aluminum) but also the Rod Breakdown Machine (because it last longer) . Except for this , you also save money from somewhere invisible – electricity . This rod breakdown machine  is the one most people neglect.

Nirmala Engineering Works has been serving the industrial zone from the last 25 years with its world class wire drawing machines like RBD, Aluminium wire drawing machines, Intermediate Machines, Rod Break Down Machines, Annealing Machines.

Nirmala Engineering Works manufactures the wire drawing machines to serve the industrial area with world class machines through deep research and development. It manufactures all type fine wire drawing machines, like Rod break down machines, Annealing machines, Intermediate machines, High speed wire drawing machines.

MIG welding is one of the simplest ways of welding, but it does need a good practice to perform such kind of welding. With the perfect tool and the requisite experience you could carry out the best quality welds with the help of MIG welding machines.

Usages of MIG Welding Machines

MIG welding is typically used to join aluminum and other metal sheets basically softer metals. MIG welding is used where high diffusion power is not required and the sheets to weld are of around one eight of an inch thickness. If you are working on thicker sheets it is advisable to go ion for the system that can support 230 volts. If commercial project of welding is your cup of tea, then you much take help of a plant with high amps somewhere more than 200 amps.

MIG goes to explain metal inert gas welding. The name is lifted from the welding that is done using inert gas as a shield to protect the weld pool and it also works as a flux for the welding goal.

When doing stick welding, the flux is there on the stick or the filler rod, under these circumstances the shield comes in the form of inert gas.

How to Buy One

It has been often felt that welding plants are a bit expensive and establishing welding equipment for personal use is something too expensive and out of reach of an individual. This is not the truth though. One can buy a MIG welding machine for a couple of hundred dollars, if one is going to use this welding equipment not that frequently then it is better to go for some better welding machines and may be better in use and less expensive and also and my may become the neighborhood favorite.

Guidelines to Use

When performing welding with a MIG welding machine, and if wire feeder is used for filler wire, then the end result will be something identical to an alligator clip, and this is to be brought near to the welding zone. For thicker substances which are closer to your plant, you can do a bit of pre heating. Pre heating should be limited to 250 degree F only when you are using the less important plant that is not suitable for business purpose.

If you are going to use the welding equipment in your house hold socket, one important point that you must consider is that modify the rating of your fuse, or else you will be at the risk of blowing your fuse every often. You can also learn that by experience.

If you are trying the MIG welding machine for the first time without refereeing any guide, you are more prone to dig a hole in your sheet/weld job. But have patience, don’t give up, with a few more holes, you are likely to turn to be a better welder than when you started off first.

Using welding machines is not a big deal to get panic, and by apply right strategy, advises and referring the manuals and guidelines provided, it is quite easy to perform it on your own.

The TIG welding process allows a welder exacts controls which result in a clean weld blob. TIG welding machines are frequently used to weld stainless steel, aluminum, magnesium, copper, brass, chrome and other alloys.

The acronym TIG stands for tungsten inert gas; though, the official name for the progression is GTAW. A type of arc welding, TIG uses a tungsten electrode held in a TIG torch. Shielding gases flow from around the tip of the torch to stop weld corrosion. The tungsten electrode is not consumed by the weld; it simply serves as a means of directing the arc. A separate filler rod adds metal to the weld. The welder uses one hand to hold the TIG torch, one hand to hold the filler rod and a foot control to operate the heat input to the weld.

Most stick welding machines can be converted into TIG machines through the addition of an air cooled TIG torch, TIG machines provide additional features that allow for wider welding applications. High frequency start features produce an arc without a physical strike. Preflow and post flow a characteristic start the stream of shielding gas before and extends it after the actual welding. Particular frequency settings manage the welding arc for welding different types of metal, including aluminum.

Operated By Only Whoever Is Skilled Welder

A TIG welder can weld any type of metal. Specialized welders are required for TIG purpose because skill required is high. TIG welds are of the highest quality when compared to stick welders. Stick welders can weld steel where medium skill is required. Stick welding is used for rugged outside conditions and repair shops. TIG welders are used in more refined conditions and applications.

TIG welders require less current and pleasing weld appearance. A tungsten electrode is used to carry the arc from the torch to the work piece. Filler metals require separate electrode that is fed manually. The gas is used for shielding.

Most of the packages have work cable, clamp, input power cord, TIG torch, gas regulator with hose and foot control. Shielding gas is also required but it is sold independently. For safety purpose, individual protective gear, especially gloves, shields and eyeglasses should be worn to shield the welder.

It Will Let You Get Extraordinary Benefits

TIG welding machines produce high quality welds through precise control of the heat input through a foot petal feature. Smaller amounts of filler metal is added to the weld puddle, creating vary little spattering or sparking. The welding process does not generate slag, saving the welder from having to remove slag among weld passes. TIG allows welders to produce welds in a variety of positions: flat, straight up and overhead.

More Tig Supplies Articles

This video shows two arc/stick welding machines and explains how to connect the leads and hook it up ready for welding. See here for more www.learn-how-to-weld.com For high resolution video, go to : www.learn-how-to-weld.com And click on the “Arc Welding Machines” link on the left…

Mig welding machines can be broken up into four basics main parts or areas that are very critical to the successful operation of the machine.

The first area I will talk about is the power supply. The power supply on any mig welding machine is a key area in which controls many variables. Some of the “made to a price” mig welding machines are very basic in their functions and abilities. Take for example a small 110Volt or 220volt hobby or DIY type welding machine.

A lot of these machines will be made to run at very low maximum amperage outputs. They will have lower duty cycles and often used aluminium windings in the power sources.

Now lets take a comparative look at a tough industrial high workload mig welding machine like an OTC Daihen XD400 or XD500.

First thing you will notice is the sheer size of this machines power supply compared to that of a smaller hobby welder. The maximum power output will be much higher and this machine will run day and night in a production environment hassle and trouble free. The duty cycle will be much longer and there will also be a better current output from the machine which means you will have far superior weld beads.

The second area is the welding torch, or the mig welding gun. Once again on the lower end of the scale, the welding guns that are supplied with the cheapie mig welders are usually proprietary to that particular brand of welding machine. The mig torch welding consumables will not be as “mainstream” and the quality of the actual welding torch can be of much lesser quality and durability, which will lead to failures and lots of swearing and cursing.

Mainstream mig welding guns will offer higher duty cycles, many more consumable options, longer service life and a wider availability of spare parts and consumables. Also these industrial trade quality mig welding guns will be more comfortable to use which means less user fatigue, they will have smoother feeding resulting in far superior welds and if you are in business the reliability of these torches will save you money.

The third most important aspect of any mig welding machine is the mig welding wire. The mig welding wire is absolutely critical in the mig welding process. Selecting a quality mig welding wire is often very hard to do. Unfortunately people buy mig wire on price and usually price only.

Sadly though cheap things aren’t good, and good things aren’t cheap. This is very true with mig welding wire. The cheap wires will have bad copper coatings, sometimes even being sold with rust on the wire itself. The wire diameter tolerances will not be consistent which will result in irregular wire feeding, which will then result in burn backs, which will then result in having to replace contact tips which cost money and then you loose the production time as workers are walking around fixing welding machine feed problems all day.

The fourth and last critical area on a mig welding machine is the earth clamp or ground clamp.

You have to remember that when you are welding, you are simply creating an electrical circuit. And for that circuit to complete you must have a good earth connection. This can be solved by having an earth clamp that has clean contact faces. Over time little arcs will form on the welding ground clamp which will hinder its operation.

Then if you put the earth clamp onto rust steel or painted steel it will be even harder for the mig welding machine to complete the welding circuit. Resulting in the person welding getting angry because his mig welder isn’t working properly.

For further reading please visit

http://www.learn-how-to-weld.com/mig-welding-basics-1.html

Cheers,

Peter Apalais

Wire feed welding machines are also known as mig welding machines or for short, a mig welder.

Regardless of what you call the machine they all have the same basic features.

Going by the description of the name, you need to feed wire.  As this wire is feeding, electricity melts it and the base metal together.  This is essentially how it works.  As long as you keep wire up to the electric arc you will be able to weld all day long.

Now to control this you hold on to what is called a mig welding gun.  This allows you to accurately place where you want your weld to be.

Wire feed welding machines are rated by their power output in amperage (Amps).  So for example a small machine might only be rated at say 90 amps and a large machine might be rated at 500 amps.

The more amps the more electricity is used which means you have to heat needed to weld thick metal.

Another point to look at, is what is called duty cycle.  Now just because one machine might be rated at 100 amps and another machine is rated at 140 amps this doesn’t mean that the 140 amp machine is better.  Welding duty cycle is a figure that is given for how much work the welder can do at full power and for how long.

This is rated in a percentage, so for example 20%, 30% and 40%.  What this tells you is that how long you can weld for in either a five minute block or ten minute block of time.  So if your machine is rated at 20% duty cycle you could only weld at full power for 20% of either 5 minutes or 10 minutes. The trick here is to know what time frame your duty cycle is rated at.

So let’s assume that your machine is using a 10 minute time cycle.  This means that you can weld for two minutes at full power (20%).  Now for the rest of the time which is eight minutes you cannot weld at all, you have to let the machine cool down.  This is definitely one thing to look out for when you go to buy a mig welding machine.

A wire feed welding machine will also use consumables.  The main consumables that you will need to keep buying will be your contact tips, nozzles and shrouds and gas diffuser.  There are other consumables that do need replacing but not so frequently.  They are your liner, contact tip holder and maybe a few O-rings depending on what model welding torch you use.

To find out more detailed information about wire feed welding machines go to my website and see some photos and videos all about welding:  Wire Feed Welding Machines

The demands of today’s global marketplace can put as much pressure on a business owner as a resistance welder puts on coil ends to create a join with electric current. Fortunately there is one equipment maker who has been at the top of the manufacturing world for more than half a century – Guild International Inc.

A world leader in designing and manufacturing of tube mill entry machines for steel processing, Guild International Inc. strives continuously to meet or exceed the rigorous engineering standards its clients have come to expect and value. Factories of all sizes around the world use Guild equipment for all their steel processing needs.

Customers know that they can rely on Guild machines. This is because they have seen first hand how well they perform in factories of all kinds and sizes. From resistance welders to tube mill entry machines for steel processing, Guild’s machines consistently increase manufacturing productivity at thousands of strip processing companies around the world. All types of coil processing lines, using all kinds of materials, improve when Guild equipment is used. Guild has been a leader in this field of manufacturing since 1958.

As for tube mill entry machines, there’s Guild’s UNC Uncoiler. Made of heavy-duty fabricated steel construction, the UNC Uncoiler operates on many different kinds of processing lines, such as roll form lines or high-speed tube and pipe mills. This machine comes in both single- and double-arm units. The different types of units assure the best fit for any manufacturer’s process.

In addition, Guild offers the SL Superloop ™ Accumulator. This unit performs perfectly for small- and medium-size mills, thanks to its patented overspeed feature, which creates large amounts of usable storage. Flexible entry and exit points allow for installation in new or existing lines. This accumulator can handle material from about .03″ thick up to .312″ thick and line speeds from approximately 50 FPM up to 900 FPM.

There’s also the SCA Supercoil horizontal strip accumulator. These units are designed for use in medium and large pipe mills. Like the SL Superloop, the SL Supercoil comes with large amounts of usable storage and flexible entry and exits points, to make installation in new or existing steel processing lines as simple and effective as possible.

Both the Superloop and Supercoil accumulators and the UNC Uncoiler are designed with the same exacting standards that Guild’s engineers put into all its machines. Customers who install Guild machines into their factories are assured of top-quality performance every time.

Tube mill entry machines and accumulators are only two of the many patented manufacturing products that are offered by Guild International Inc. When you take a look at their catalog you will see it includes products such as its Zipwelders™, semi-automatic shear welders, resistance welders, and a full line of rotary and cropshears along with speed funnels and flatteners.

Guild’s team of engineers can help any factory determine its manufacturing needs, assuring proper equipment design and compatibility with legacy systems. Guild International is the recognized leader in coil machinery for all steel processing needs.