Computer Numerical Control

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Cnc Windows Software

The development of computer numeric controlled (CNC) routing, using affordable personal computers has already begun to revolutionise all aspects of the woodworking industry. In so doing it has created new opportunities for large and small businesses as well as for individual craftsmen.

CNC is a technique whereby the movement of a router head is controlled by instructions from a computer. These instructions come from a computer program or list that the user keys into the CNC 860 console or into a computer as ISO standard commands called 'G' codes.As an example, the code G01 X100 Y100, instructs the head to move in a straight line to a point horizontally and vertically 100mm away from its starting position.

The CNC 860 The Trend CNC package is based around the Elu/DeWalt CNC 860 Machining Centre, which has a machining area of 860mm x 860mm x 90mm. These dimensions relate to the three axes, X,Y and Z (width, length and height). Each axis is served by a separate stepper motor, controlling the movement of the routing head. Two head options are offered: a modified portable router or a continuously rated, high cycle motor, that provides improved performance for intensive machining applications.

Programming directly in G-codes through the console can be time consuming. To assist the operator, a PC software application called CNCTalk is included with the machine. This is a basic computer aided design (CAD) application which runs under DOS, the original PC operating system before Windows. It is useful for intermediate applications like cutting out irregular shapes. However, to gain the maximum versatility from the CNC 860,Trend's Open Sign System Software for Windows is the most effective solution.

OSS consists of two separate software applications: OSS Draw which provides the drawing tools to create any shape or sign, and OSS Work which handles all the routing and tooling-related parameters like depth and offset. Graphical simulations are shown for all tool parameters enabling the user to perfect a design before routing any material.

Sign-writing As an example of how these products work together, the method of producing a simple sign is shown, incorporating two different lettering styles and a graphical logo. Having launched OSS Draw, the first step is to draw a box or boarder on the screen to indicate the overall area of the work. This can be either a simple rectangular boarder or a more decorative one. This border then needs to have a depth assigned to it. This is done by using colours to define the depth of each area.

The logo is then created using the drawing tools within OSS Draw. The words are keyed in using the text function. Again, colours are assigned to each area to produce a graphical representation of how the finished sign will look. The next task is to define the routing parameters. In the example, the red and blue areas of the logo and the lettering have been assigned a depth of 5mm and the green area assigned a depth of zero. The same dialogue box lets you specify whether a letter or object is engraved or routed through the material. The cutter profile that will be used can now be defined. With lettering, particularly serifed fonts, the cutter used needs to have a small diameter, perhaps 3mm. However, to achieve a 5mm cutting depth this will have to be routed in several passes.

A simulation of the cutting path is now drawn on screen. Having then created a G-code file of the sign ready for the CNC 860 to cut, the file is downloaded to the CNC 860. The design can now be routed, the material being held on the bed by an adaptable clamping mechanism. From the simulation, the path that the tool will take is known allowing a datum point to be set using the zero key on the console, and the program 8 INProfile is run using the start key. This type of routing operation takes around 20 minutes to complete and requires no further involvement by the machine operator. Other accessories Sign-writing is just one of the many complex and wide ranging routing operations that can be carried out using the OSS and CNC 860 package. OSS also has a range of tools for drawing component shapes and profiles directly or with an electronic sketchpad (graphics tablet). Vacuum Clamping To reduce the through-put time for this kind of operation, the CNC 860 can also be used with a vacuum bed. Trend offer a complete range of affordable vacuum pumps and jigmaking accessories to enable all CNC users to produce a highly automated production system to suit their own specific requirements.

Article Source: http://www.articlesnatch.com

About the Author:
Paul Disley is a woodworking expert at Trend Router

CNC Turning Process - An Overview

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CNC Turning process is a simple method of shaping a metal or wood on a lathe. It is a machine tool that spins or turns a block of material to achieve rotational symmetry in a machine shop. Turning can be done manually or using a CNC machining. The computer numerically controls CNC machine. A typical CNC machining center is designed to remove material using a rotating cutter that moves laterally to a work piece mounted onto a table or fixture. In the CNC turning process, a piece of material is rotated on the lathe and a cutting tool is traversed along two axis of motion, transverse or longitudinal. The process is done in a machine shop. The cutting tool is used until the required depth and dimension is achieved. Turning can be on both sides, inside or outside as per the needs and specifications. The rotation occurs at the turning center that enables control of tool motion through computer programs that use numeric data. Parts that are too large to balance and cause difficulty in rotating around one center point, can be worked on a machining center featuring a U axis. The turning length is about 1000mm between centers and has a drive power and speed range up to 46kW and 4,000 revolution/minute respectively. CNC turning process cuts the metal into various different shapes ranging from plain surface, taper ends, contour, and filter to radius profiles and threaded surfaces. These cut and turned metal pieces are used to create shafts, rods, hubs, bushes, pulleys and much more. Many industries also use it for fabricating parts and materials that have circular cross section. The process applies well to the most rigid materials that can be controlled exclusively with the software program tooling. The process does reduce the cost of production but on the other end, it limits the design flexibility. CNC turning machines are said to deliver components at a faster production rate with optimum manufacturing accuracy. The automation of the CNC turning process allows reaching tight dimensional tolerances in every piece. Other advantages are high level of parts consistency or uniformity, achievement of optimum cycle times for all components and faster execution of larger volume. As machines have brought a revolution in the industrial world, new technologies provided by emachineshop, boost the use of metal products. George is a well-known author who writes on the topics related with free CAD software, cnc machine shop and waterjet cutting for the site www.emachineshop.com. [Photo]

For all your CNC machining and plumbing needs

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White Racker Co. is a manufacturing company that deals in the production of CNC Machining, Commercial Plumbing Specialties and Washroom Partition Hardware. Ours is a company that focuses on Commercial Plumbing and deals in Toilet Partition Hardware, CNC and Machining. Our prime specialization lies in CNC Machining. CNC or Computer Numerical Control Machining is the use of completely automated machining functions to quicken and make industrial processes far more efficient. In our CNC machining division we handle a variety of different services. We specialize in providing precision-machined parts in castings, forging and bar work. Along with our CNC turning and CNC milling functions, we also have secondary operations and in-house engineering and tooling. The main purpose of CNC or Computer Numerical Control Machining is to produce 3-D structures with the help of a many computer controlled commands. This involves the selective removal of material from a workpiece. The new developments in machining technology have made manufacturing operations modernized, swift and fully mechanized One of the main advantages of CNC Machining is that it leads to the enormous reduction the cost of machining. That apart, it also improves operational capability, and reduces time taken lending a great deal of uniformity and consistency to the product. An important and useful point to note is that it is easy to identify errors that may occur during the operation and manufacturing process using these machines. In CNC machining, these programs sends notifications to the operator's mobile phone in case of any problems. Apart from the use of CNC machining in use conventional machining, CNC is used in Robotics, Electromechanical machining, Welding and Laser cutting. Everything that an operator would be required to do with conventional machine tools is programmable with CNC machines. With some CNC machining, even the workpiece loading process has been automated. As a result, the cost of production is reduced significantly and efficiency of production substantially increased. At white Racker, along with CNC Machining, we also deal with Aluminum and Brass Casting, CNC Turning and Boring, All Secondary Operations, In-house Engineered Tooling, Prototype to Production Runs, JIT Delivery, 2 Jaw and 3 Jaw Chuck Work. CNC Machining is a very important link in the plumbing and manufacturing process and at White Racker we assure you that all your needs are fully and efficiently met. For more information please visit:www.whiteracker.com

Aluminium Die Casting

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Die casting is the scientific process of forcing melt metal with high pressure into mold cavities. Most of the die castings are made from non-ferrous metals, including Aluminium, Zinc, magnesium, lead, and other tin or copper based alloys. The die casting method is suited for applications where a large quantity of small to medium sized parts is needed with a fine surface quality and dimensional consistency.

Aluminium is the preference metal for making light weight parts of vehicles, aerospace, transport and many more industries. Casting of liquid aluminium alloys into metal moulds utilizing systems like gravity, low pressure and high pressure die casting is an economical way of making difficult shapes which need minimum machining.
The main die casting alloys are: zinc, aluminium, magnesium, copper, lead, and tin etc. Main advantages of aluminium die casting are:

• Lightweight
• Dimensional stability for complex shapes and thin walls
• High thermal and electrical conductivity
• It retains strength at high temperature

CNC Machines technology is one of the new emerging technologies used in metal industry. The introduction of Computer Numerical Control (CNC) machines has made a good impact on the manufacturing industries. These are very useful as can help to cut curves as a straight line; Complex 3-D structure can be produce and thus reduced the human actions. It gives more flexibility in holding the parts in manufacturing and to change the machine to produce different components.

With CNC Precision machining, all of this drilling can be done automatically instead of the manual process listed above. Machining has to be precise, and whether you use a CNC lathe or milling machine, you have to make sure the part is right. The computer takes a lot of the guesswork out of the machining of these parts. In fact, a CNC programmer can sometimes get bored watching the machine do all the work.

There are number of industries providing World class quality, manufacturing and services in Aluminum die casting and CNC Precision Machining.

By: webmaster777

Article Directory: http://www.articledashboard.com

Aluminium Die Casting and CNC Machining are getting very popular in most of the countries. For more details please visit our website www.bepsi.net.

CNC Machining - An Overview

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CNC stands for computer numerical control. It refers to a computer "controller" that reads instructions code which dictates how a machine operates. And is typically associated with the removal of material such as metal for the creation of a complex part. The design and cutting is controlled by software programs like, CAM and others.

The earlier version of CNC was a system referred to as NC or Numerically Controlled machines, which were basically physically wired and their operating parameters where difficult at best to change, if at all.

Punched tape was used and continued to be used as a medium for transferring codes into the controller for many decades after 1950's. It is now replaced with computer networks and software program that aid greatly to efficiencies and the ability to adapt mid project.

CNC machines have changed the tool and die industry and manufacturing in general since their introduction. The programs have lead to eliminating most of the human involvement. For example, curves are now as easy to cut as straight lines, complex 3-D structures are much easier to produce, and the number of steps to produce a part has been dramatically reduced.

Beside the efficiencies of manufacturing created by CNC, a further benefit has been a major improvement in quality control. With less human involvement more consistency in production, quality has been the result. Bottom line, CNC eliminates many mistakes and errors that human involvement can lead too.

In a company that focuses on CNC machining, they often set up a series of CNC machines sometime referred to as a Cell. The interesting thing here is that a series of CNC machines can be set up together allowing the part to go from one machine to the next, all without human involvement. For example, some companies have automated the process to the point that they will leave their machines running over night and over weekends with no operator involvement. Laser devices check for quality control and alert the controllers if any defects are found.

Mike Webster, Webster Engineering is a prototype and low-volume machine shop specializing in complex and precision metal work since 1962. Located in Roseville, Michigan, Webster Engineering is privately owned and certified to the ISO 9001:2000 International Standard. Webster Engineering has a reputation for providing solutions that exceed expectations for speed, accuracy, delivery, quality and cost - achieving real customer satisfaction. Contact Webster Engineering at 586-777-0116 or CNC Machining or complex prototype design

Article Source: http://EzineArticles.com/?expert=Mike_Webster

Industries That Constantly Define CNC Precision

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Since the dawn of the CNC (Computer Numerical Control) machines introduction in the machining sector, they have been praised for being accurate, fast, consistent and flexible. Although CNC machines are not totally independent, a lot of major industries depend on these wonder machines. Common CNC-dependent industries include the metal industry and the woodworking industry. However, these industries, when small-time, can be operated by hands.

In this article, you will learn about the industries which are CNC dependent not because they have grown big in time but because they have to. It can be also that they are CNC dependent because their industries demand a low level of tolerance and a high level of sophistication. There are no “small-time” members of this industry. Let’s start discussing.

THE AEROSPACE INDUSTRY

First off, this is already a very sophisticated industry. An engineering degree (solely) will not get you anywhere in the Aerospace industry. Not even within striking range. This industry demands so high from their members so machine shops that belong to this industry trust only the best of the best of CNC machining. In fact, sources say that the term “Precision Machining” has been coined from this industry.

In the materials they use, the aerospace industry already demands a lot. CNC machines which are used here are mostly capable of handling Inconel, Titanium, Magnesium, Stainless Steel and so much more. From parts of the landing gear, to shuttle seats, to housings, and even oxygen generation, CNC machines play a big part in their manufacturing.

It’s not just that. Every CNC machine used in this industry also has to be approved AND RATED by the Federal Aviation Administration (FAA) to be safe and to be surely capable of “Precision Machining”. A NASA experience is highly praised too.

THE MEDICAL INDUSTRY

If the Aerospace Industry demanded precision above all, the Medical Industry demands sterility as much as precision. That’s something that you may have known since you got your first vaccine. Most CNC machines which work for this industry are multi-spindle and contain multi-turret lathes.

These special features allow the company to turn out components for hospital equipment, pulse meters, blood purification systems and mother medical devices. They are also useful in the mass production of disposable items and non-embeddable components.

High-torque milling and turning spindles are heavily demanded in this industry to enable users to process all substrates currently used in the medical device and orthopedic implant markets. Moreover, CNC machines recommended in the medical industry are those which can properly handle Titanium, Cobalt Chromium, Nitinol and others.

THE MILITARY INDUSTRY

This industry’s main concern aside from precision is security. In fact, if you try to search online the CNC-manufactured materials or CNC machines used in this industry, no matter how famous their reputation is, the manufacturer cannot display (pictures of) the materials that they have produced for their clients. They can only display products which they are used in.

This industry deals heavily with Inconel, Titanium, Kevlar, Monel and Hastealloy; so most CNC machines recommended in the Military industry must be able to handle those.

Famous CNC standards evaluators in this industry include the Department of Defense (DOD), the Mil Spec (Military Specifications) and other selected military sectors.

The top managers of these industries also demand their CNC machines to be purchased from CNC machine suppliers which adhere to the International Standards Organization (ISO). And because these industries are CNC-dependent, their shops can occupy a vast amount of space. Basically, that makes no room for old school methods and errors.

Meet Your "Other" Employees: The Basic Parts of a CNC Machine

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If you carve your name on a wood using a very sophisticated font, you’re lucky if you’ll finish your first name in 24 hours perfectly. Years ago, wood crafting and metal crafting are very expensive massive- labor industries because every aspect of the manufacturing is done by hand. There was minimal machine intervention but the designs were still as intricate.

Today, with the help of technology, wood carving, metal molding, cutting and even finishing can be done simultaneously with minimal hands involved. In fact, a company is deemed unproductive if it mass produces products every day BY HAND.

CNC (Computer Numerical Control) machines are in demand in industries where hands are better off pushing buttons than doing actual labor. Businessmen are raving about this wonder-machine because it is accurate, speedy and flexible.

The CNC machine is actually a factory of its own. There are different parts that have specific functions. Let’s get to know the “factory workers”.

THE VICE

The Vice is what holds the material which is to be cut or molded. It is important that the vice must be tight; so the material will be held securely. When the CNC machine starts to operate, the material will dash out of the vice if it is not secured. The vice usually works like a clamp that needs to hold the material not just securely but also in the right position.

THE GUARD

The Guard—just like any other guard—works like a “protection” to the person operating the CNC machine. Once the CNC starts working, scraps of the material can “shoot off” at high speed. This is very risky for the operator if a piece hits him/her. The guard completely covers all the hazardous sides of the CNC machine.

THE CHUCK

The chuck holds the cutting tool. Sophisticated designs require maximum chuck precision so the actual design can be realized.

THE MOTOR

The motor rotates the chuck at very high speed. It is hidden and protected inside the machine. You have to take care of this part very carefully. Nowadays, cooling and lubrication is automated in most CNC machines. Usually, if this part doesn’t function well, it is the most difficult to treat. It is advised to have a CNC technician handy all the time.

THE LATHE BED

Like the sea bed, this is the sturdy base of the CNC machine. It is connected to the headstock and aids the carriage and tailstock to be parallel with the spindle’s axis. It is securely bolted so it remains unshaken by the vibration of the machine when it starts operating.

THE CUTTING TOOL/ CUTTER

This is the where the first-level shaping occurs. The cutter is usually made from high quality steel so as to cut the specific material fed to the CNC machine.

As a businessman, it is important that you get to know your employees, bond with them and earn their respect without scaring them. When you have CNC machines working for you, it is equally important that you understand them well. Do not be fooled by the CNC machine salesmen who court your interest because they are usually just after your purchase.

You have to master what comprises these machines, what makes them dysfunctional and most of all, what makes them stay in your company. Just don’t start talking to them. That would be really, really, dysfunctional.