CNC Machines - Scope And Utilities

The scope and utilities of the modern CNC machines have greatly increased with the growth of small and medium scale industries. The advanced CNC machines are highly portable, small in size and light weight. They are also called Desktop and Benchtop mills or lathes for their easy mobility. In spite of their compact size and design, they are proved to be highly durable as these machines too are built of heavy duty machine parts and components like their heavier versions used in heavy industries. Such mobile machines are very capable and efficient at cutting and shaping strong metals and non-metals with a higher degree of precision and rigidity.

As desktop CNC machines come with a factory acceptance test report which guarantees its safety and efficacy, the benchtop machines are increasingly getting used in school laboratories, college & higher education workshops, mini factories, hobby centres and R & D laboratories. Even using a CNC machine is not a big deal. Modernized versions of mills and lathes can be fully operated with the use of computer programming, as this operation requires less calculations and the machine does its work with good accuracy. The CNC mills and lathes are fitted with powerful motors with high rpm, so as to enable them to cut and shape even thick metallic or non-metallic sheets and boards.

Automatic and highly reliable CNC machines are very efficiently being used in small factories and workshops for the purpose of jewelry making & designing, metal molding & dyeing, cutting and shaping of surgical equipments and blades, manufacturing scientific and measuring instruments and for drilling and cutting of various objects. The systems of these high caliber machines are designed and developed using the latest mechanical and electrical engineering techniques, which give them a competitive edge over other similar cutting and drilling machines.

The desktop CNC machines are very user-friendly and safe to use, even for amateurs with just little guidance on operations. The high precision, rigid, small, handy, lightweight, powerful and durable CNC mills and lathes do not come with high cost as per the features showcased. Instead the modern high precision CNC machines could be purchased at very low and reasonable costs. Whether you want to purchase such machines for a new set-up or want to replace old and heavy machines with modern ones, make extensive research on internet about the best prices and associated features of CNC machines and make a deal only with reputed and innovative manufacturers.

Used Cnc Router Machines

Save Time With A Hydraulic Log Splitter

If you have a lot of wood to chop then a log splitter is a wise investment. You can buy log splitters to chop wood for a fire or to make furniture. You can find this type of product wherever you find other logging machinery. If you want to save some case then buy a used one or build your own. You can go online to research how to make your own log splitter.

A great hydraulic log splitter is worth consideration when you are looking into different types of log cutters. These have a diesel or gas engine which delivers power to it. The engine is connected to an oil pump that in tow gives power to the hydraulic cylinder. There is a tank that contains the oil and you must change this out every once in awhile.

Hydraulic Log Splitter Features:

-You can choose an engine that goes from 5-8 horsepower.

-One for your personal use will have a smaller engine than one that you use for business. -You can get 10-25 tons of splitting power.

-It will have a 2-stage oil pump.

You will normally used a log splitter on your own property if you want to cut up firewood. You must first remove all the branches from a tree with a chainsaw and then you can cut down any parts of the trunk into smaller pieces. After words you can cut them with your splitter. Having a machine can help you shave hours or even days off of this kind of tedious job.

How To Be Safe

-Never allow kids around the splitter.

-Never allow children to use the equipment.

-Make sure to wear sturdy boots to protect your feet.

-Don't wear loose clothing or long sleeve shirts that could get caught in the machinery.

-Always use safety goggles.

Make sure you know how to use your splitter before turning it on.

-You should look over all the instructions thoroughly before you turn it on.

-You also want to make a safe area around your machinery to protect people from logs or debris that may fly.

-You should also never use it when you are drinking or if you are on drugs.

-Don't use it in a slippery area.

-Only use it for its intended purpose.

-Never remove the guards.

If you want to use your splitter for something other than cutting wood, you can try your hand at making furniture. You will also need a chainsaw if you want to make furniture.

Here's a sample list of the thing you'll need to get started making wood furniture today:

-Clamps for holding things still

-Instructional information

-Large sized chisels

-Corner and framing chisel

-Mallet

-Tenon maker

-Guides for woods to shape them and in different sizes

Work Holding Devices Milling Machine

Magnetic Lifters for Heavy Load Operations

With a lifting capacity of exceeding 25 tons, magnetic lifters are well suited for a wide range of applications.

Magnetic lifters are an ideal material-handling solution for transporting heavy loads of ferro-magnetic material, such as steel plates, forgings and die castings, safely without the use of clamps, slings, chains and other holding devices.

Types of Magnetic Lifters

There are three types of lifting magnets: permanent, electromagnet and electro-permanent. While they all can safely transport heavy loads, each type has its application specific advantages.

Permanent magnet lifters, made from rare earth or ceramics materials, use permanently magnetized material to generate the lifter's magnetic field or holding force. They do not require electrical power, which eliminates hazards caused by power interruptions and gives them the added benefit of portability. They are manually operated using a lever located on the lifter. A safety latch is typically built in to ensure that the magnet is not accidentally turned off while performing a lift. However, one disadvantage is that permanent magnets have a non-variable lifting capacity.

Electromagnetic lifters use an energized electrical coil wound around a steel core embedded in the lifter to generate the magnetic field. A D.C. controller or rectifier provides the excitation voltage to energize the magnet. This voltage can be varied and gives the electromagnetic lifter another benefit: variable holding power. However, the primary disadvantage is they require the continuous application of electrical power to operate. So, a power failure would de-energize the magnet and create a potential safety hazard. To overcome this problem, an uninterruptible power supply (backup system) would need to be integrated into the lifting system.

Electro-permanent magnetic lifters are a combination of the permanent and electromagnetic types. They use permanent magnetic material that is turned on or off by a D.C power supply, which can be supplied by a D.C. controller or a battery, but electricity is not required at all times. The battery would require periodic recharging, however. Since they only need electrical power to turn the lifter on or off, they have a built-in failsafe operation.

Retrieving and Scrap Applications

Lifting magnets are the perfect solution for retrieving material from obscure, difficult-to-reach, or dangerous places. They are commonly used in underwater applications to retrieve metal from a damaged submerged vessel like a sunken ship or wrecked oil well. Lifting magnets in these applications are called retrieving magnets.

Larger, heavy-duty lifting magnets are often called scrap magnets. They can be used to lift large objects like scrapped vehicles. Specially designed, scrap magnets have the ability to lift large coils of wire without the unwinding or telescoping of the coil.

Other Advantages

There are many other advantages to gain from lifting magnets. They include:

Eliminate Drilling Tap Holes: the need to drill and tap holes in materials prior to lifting is many times required to obtain an anchor point or eyebolt to latch onto. In many instances after lifting, the eyebolts need to be removed and the holes filled up, which can add to the cost of the product.

Easily Palletized: Magnet lifters are particularly useful if individual parts from a stack or crate of parts need to be moved. By accessing the part with a lifting magnet, it can be lifted vertically out of the crate or stack.

Using A Cnc Press Brake Machine For Custom Roll Forming

A press brake is a machine used in secondary forming of laser cut or punched sheet metal. The biggest advantage of press brake is the enormous sizes of work pieces that it can handle. It is amazing to note that the bed length of a press brake can range from 4 to 14 feet and it can roll the sheet metal with a force varying from 25 tonnes to over 250 tonnes.

Almost all the tools used in press brake rolling are standard and these standard tools can be used for almost any formed shape and part size. A press brake is an ideal machine for rolling medium and small run steel fabrication services. A CNC press brake is the most popular machine being used for rolling sheet metals these days. CNC stands for Computer Numerically Controlled which brings high level of precision in finished product. Although hybrid electric and hydraulic machines are the latest in the industry right now, CNC continues to be the most popular machine.

A CNC press brake machine is programmed with automatic back gauging that can go up-down and in-out. It provides depth stops for accuracy and repeatability. A CNC press brake has multiple tools, both stock and separate for handling various bends with just a single setup. This advantage of a CNC machine makes it an obvious choice for custom roll forming operations. An operator can set multiple tool stations over the bed of one press brake, which allows the whole process to be carried out at a better pace as compared to other press brake machines. A CNC press brake forming machine can make the whole process more competitive in the industry. A CNC press brake can also be used to form ribs in different parts of the material without having to change the gauge of the material.

A CNC press brake forming brings high degree of precision in the entire process. The tolerances achieved in the process are however similar to forming or cutting processes that were used to make blanks before press brakes came into operation. A CNC machine can be used to handle large production volumes and complete the finished product along with a high degree of precision. Spare parts for a CNC press brake machine are easily available with local vendors and hence the overall operations cost of the machine is not high.

Popular Cost Effective Alternatives to Metal Stamping

In the context of metal forming, the process of metal stamping comprises of several different press forming operations such as punching, bending, flanging, coining, blanking etc. For a sheet or tube of metal to be made useful, it needs to be formed. These processes have been in use for several decades and have evolved with the emergence of newer techniques over the years. Despite this, there are certain drawbacks associated with stamping that tend to delay or adversely affect commercial or industrial projects.

For instance, the biggest challenge is investment in tooling systems. The entire set-up requires a significant capital investment, the cost of which is passed on directly to customers. Another aspect to consider would be production volume. Most companies that cater to industrial players often find it difficult to cater to small production volumes. Even if they do agree to deliver a limited batch, the cost per part is significantly high. In such a case, the lead times tend to be longer too.

With these drawbacks of stamping become more evident to industries, there is a growing inclination towards alternative methods such as sheet hydroforming and metal spinning. Interestingly, the tooling costs of these alternative methods could be up to 85% less than conventional stamping tooling costs. While there are several companies that offer such services, there are only a handful of companies that offer world-class metal forming and fabricating services.

Let's take a look at the benefits of these alternative metal forming methods:

Metal spinning: Also referred to as spin forming, this method allows a fabricator to use a metal disc or tube to turn it into an axially symmetric part. This is achieved by spinning the metal on a high-speed lathe. In some cases, the spinning process is carried out manually too. Different types of ductile metals can be formed using this particular method. The metal spinning technique is very cost-effective and is also suitable for high volume part production.

Hydroforming: This technique involves the use of highly pressurized fluid for shaping and contouring a metal sheet. Whether it is a smooth contour or intricate angles, you can achieve a well-finished part using this method. This is one of the most cost-effective methods of shaping ductile metals like stainless steel, aluminum, and brass among others. The parts thus formed tend to be structurally strong, which explains why automobile industries are increasingly using this method.

Parts formed using these techniques are compliant with the prevailing industry specifications.

The aerospace and defense sector, automobile industries, nuclear industry, furniture manufacturers, and the HVAC sector are increasingly opting for forming methods other than metal stamping. These methods are capable of producing just about any part or component that one might expect to achieve through metal stamping.

Ways to Address the Shortcomings of Metal Stamping

The background

In the engineering and manufacturing sector, metal stamping has been conventional the chosen part-forming process. Metal stamping entails the use of various processes such as punching, embossing, bending, flanging, and so on. These processes are typically carried out on sheet metal using a stamping press or machine press.

As various industries evolved, the need for more complex and cost-effective forming processes became evident. With this, certain disadvantages pertaining to stamping came to the fore. Though traditionally popular, the stamping process has certain drawbacks that simply cannot be ignored by a new-age business. This article elucidates the shortcomings of traditional stamping methods, and other forming methods that can be employed as suitable substitutes.

The drawbacks of metal stamping

Here are some of the commonly known drawbacks associated with the stamping method:

Costs: The various pre-production and tooling costs related to stamping are high. These costs ultimately add to the cost-per-part. In many cases this high initial investment is uncalled for. However, since businesses aren't aware of other options they often agree to spend more than what is required.

Versatility: Custom tools usually need to be created before the stamping process can begin. This not only adds to the initial investment, but it also means that even the most minor change in design cannot be accommodated.

Production volumes: While there is little doubt about the fact that metal stamping proves economical in large volume production runs, it is rather unsuitable for smaller production runs. The high initial tooling investment is the main reason for this.

Lead times: From design to tooling to production, the lead times taken for the metal stamping process are often long. Thus, if one has a super rush order and cannot afford to waste precious time, they would want to rethink about choosing stamping as an option. So, what are the alternatives?

Metal spinning and sheet hydroforming are the definitive alternatives to the traditional metal stamping process. These processes can mitigate almost all of the drawbacks relating to tooling costs, production runs, and part quality that are associated with the stamping process. Hydroforming is a technique of shaping a metal using a highly pressurized fluid. This method is preferred for parts that have complex contours, yet need to maintain their structural integrity. Metal spinning-also referred to as spin forming-entails shaping a metal disk into an axially symmetrical part on a high-speed spinning lathe.

Both of these methods can be successfully used for forming high quality metal parts from various metals such as stainless steel, aluminum, and even brass. These metal forming services should ideally be availed from experienced firms with an established portfolio in providing alternatives to the metal stamping process.

The Process Of Die Cutting, What Is Its Advantage?

Die cutting is a process of cutting different materials through the use of devices. What are the materials? You cut plastic, leather, paper, metal, cardboard and textile. What device is used to cut? The tools used in the cutting process are steel stamps and rollers. The process is widely used now for industrial purposes such that more materials are being cut. The additional kinds are rubber, vinyl, wood and magnetic strips.

In the cutting of any of the materials, a metal die or template is used. You will have a predetermined shape and size and this will be the basis of the cut. So you can cut shapes and sizes, you can also cut alphabets, geometric shapes and form pictures. There are two methods employed in die cutting. These are the steel rule and the rotary or flat bed method. To give shape to the materials, the die cutting method is called steel rule. This same method will create the creases, holes or perforations and slits on the material. The rotary or flat bed method makes use of tungsten carbide in the process of cutting.

Given the method, the die cutting process begins when the material and the die is placed on the cutting machine. There are machines that use another machine like the presses in order to create the designs on the materials. These presses can be small and large, where the small kinds can exert a force equal to 20 tons. The large types of presses can exert as much as 150 tons of force. Today, many industries are already using die cutting and in such big companies, the die cutting is atomized. In the die cutting process, the materials are fed automatically to the cutting machine, then pressed and cut. Having been cut, the output is removed.

Die cutting is not only for business and industrial purposes. Any household may have some need for the small die cutting machine that is designed for domestic use. These cutters are usually available from craft store. There are also small die cutters that can be purchased online. The price is affordable and the cost is dependent upon the size. For household use, the die cutting is used in the designing of book covers and picture frames.

The die cutting process is found in different areas of industry. The distinctive shape created is one aspect for sales products. This makes the die-cut labels produced in die cutting as a real marketing instrument. With the die cutting process, you can also make library aids, educational or mathematical materials, invitations, greeting cards and more. This process also creates home decors, scrapbooks, embellishments, accessories and other crafts.

Today, the technology employed in die cutting has evolved at a very fast pace. This paved way to the use of laser technology give rise to the laser die cutting process. As innovations and technology progresses, it is expected that the die cutting process will be more sophisticated in the years to come.