Financial Crisis, international Machine tool Declining market demand, domestic Economy NC machine tool market has also been a considerable impact, production and sales dropped significantly. Although the data show that the first half of 2009, the downward trend has stopped, a slight recovery, but whether or bottom hold your breath.

Economical CNC numerical control machine tool industry is the starting product, the development of a longer period of machine tool manufacturers such technology to master the situation and production capacity are also more mature, many companies can produce, and species richness, Among them, the economic type CNC lathes, drill press and milling machine-based, including some processing center.

Because of this, its market has a lot of space, before the production of a larger financial crisis. However, after the crisis situation, the domestic economy NC machine tool surplus production capacity significantly.

Recent Association of China Machine Tool Industry Research results show that the main economic type CNC machine tool industry enterprises by the financial crisis relatively large, especially the low grade of products, production of large enterprises were hit even harder, some enterprises even the phenomenon of limited production.

This situation occurs mainly due to the production enterprises are more competitive, and the economy lathe, drill press and milling machine exports declined, exports of some products sold domestically, further exacerbating the domestic market. For higher grade of products for businesses, the impact is not very clear, especially in sophisticated high-end machine is still in short supply.

Recent years, a large number of small business development to promote the prosperity of the machine tool market, but also stimulate the machine tool industry continues to expand investment and increase the scale of production. Today, these companies can not continue to operate, or close or reduce investment, which is caused by low-end machine tools market, an important factor in the decline.

Fact, as early in the first half of 2008, economic growth on the NC machine tool production fell sharply, indicating the market demand for NC machine tool on the economy has begun to decrease, in addition, several numerical control system manufacturers domestic economy also appeared in NC System Sell Signs of decline also confirmed this.

In this context, the domestic machine tool market economy in NC machine tools and high-end CNC machine tools there is a clear trend of differentiation: a large heavy-duty and high-end CNC machine tools remained stable demand, orders are still full, there is a tendency in short supply; and common and economical CNC inventory issue is very prominent, market demand caused by economic type CNC machine tool inventories.

On 10 years ago, may produce economic type CNC machine tools was considered a higher grade. But today, in the small business can produce an era of economic type CNC machine tools, many technologies, strong market competition from both machine tool business, profits, product standards and industry status of the point, should speed up the adjustment of product structure, gradually reduce this type of machine tool production, to concentrate on steering the production of high precision CNC machine tools.

Easier. Despite the economic type CNC machine tools market has been shrinking the signs, but some businesses economical CNC product structure also accounts for a large proportion, but this is relatively common, because after all, the market still needs. But the financial crisis, a lesson to the enterprise, many companies have their own product mix to reflect, as a result of high market demand for machine tools and production task is very saturated, but the economical and low-grade products that appeared overproduction, factories production conditions in different departments of different phenomena, which accelerate the restructuring of enterprises has been facilitated.

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I am an expert from cnc-machiningparts.com, while we provides the quality product, such as Sheet Metal Fabrication Manufacturer , Injection Moldings, Machining Parts,and more

Rockler CNC Shark Routing System is now includes 5.5 software, 1/2″ dia. V-groove router bit and two hold-down clamps. Rockler CNC Shark Routing System brings the speed and precision of computer-controlled machinery to your shop with this top value CNC machine system! With a table measuring 15-3/4″ x 31-1/2″ it’s ideally suited for carvings and machining operations on a large variety of signs, doors and other small projects. It boasts impressive power, speed, accuracy, and ease of use. With its robust steel and high-density poly-ethylene construction, it can take accidental impacts that would normally damage or destroy an aluminum or MDF machine. The included Clamping Table features two hold-down slots for securing work anywhere along the length of the table. The unit comes with two hold-down clamps (additional hold-downs are available separately). It is fully compatible with the Bosch Colt Palm Router (Rockler #24918, sold separately) and includes a 1/2″ diameter V-groove router bit. The CNC Shark also includes the new version 5.5 of the VCarve Pro software interface, a $500 value. You supply a PC computer with USB 2.0 port and a Bosch Colt router (router sold separately). Simply connect the USB cable to the controller box and the other end to your computer (not compatible with Mac computers).

Features of Rockler CNC Shark Routing System:

Travel: X: 13″ Y: 24″ Z: 4.5″. High Speed traverse rate 120+ ipm. Bearings: 12 precision linear bearing guides (4 on each axis) for maximum rigidity. Resolution: Full step of 0.0005 inch; at 1/8 step 0.0000625 inch. 269 oz/in 1.8-degree steppers. USB interface with on controller memory storage. 5 turn ACME precision modified threaded with acetyl backlash reducing nuts on all axes. 24V Supply to provide full power to the steppers. VCarve Pro 5.5 software program included ($500 value). Includes 1/2″ Dia. V-Groove Router Bit. Includes two Hold-down Clamps. Mounts for a Bosch Router included (Router sold separately). More information about Rockler CNC Shark Routing System can be found from here.

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Honest reviews of CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications from real users. CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications is written by the author of the bestselling CNC Programming Handbook and the recent release Fanuc CNC Custom Macros, this practical and very useful resource covers several programming subjects, including how to program cams and tapered end mills, that are virtually impossible to find anywhere. Other, more common, subjects, such as cutter radius offset and thread milling are covered in great depth. This book presents detailed part programming suggestions for a variety of machining operations. Also it includes discussions on the following major subjects: thread milling methods, knurling, programming cams, part reversal methods, using pallet changers, applying special grooving and threading techniques, and many more. You will find numerous illustrations, charts, tables, and practical examples, allowing users to fully understand all concepts. Discover many methods presented can also be adapted to programming methods using a CAM system.

CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications available from here for $63.31 plus free shipping.

Table of Content:

1. Part Program Development
2. Calculating Contour Points
3. Formulas for Contouring
4. Using Cutter Radius Offset
5. Part Reversal in Milling
6. Using Tapered End Mills
7. Special Purpose G-COdes
8. Tool Length Offset Change
9. Block Skip Applications
10. Standard and Rigid Tapping
11. Polar Coordinates
12. Subprogram Development
13. Turning and Boring in Depth
14. Programming Tapers
15. Techniques for Grooving
16. Techniques for Threading
17. Restrictions in Threading
18. Practical Thread Milling
19. Knurling on CNC Lathes
20. Four-Axis Lthes
21. Pallet Changers
22. Working With Planes
23. Programming CAMs
24. Introduction to Macros
25. Did You Know That?
26. References and Resources

Some reviews on CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications:

“Excellent advanced book on CNC Programming topics”
- Calvinnme

This handbook by Smid on the subject of CNC programming tackles the subject from a different angle than his bestselling “CNC Programming Handbook”. That book is a more basic one aimed at beginners. This book is more advanced and contains several programming subjects that are very difficult to find either in other books or on the web. Even where there is overlap with the author’s “CNC Programming Guide”, this book provides much more depth of coverage on various subjects than that book does. As is standard with this author, this book includes many clear detailed drawings that greatly assist in visualizing the procedures covered. Whenever applicable, a complete programming example is provided. Equations and all tools used in each example are boxed and clearly labeled. As always, this author’s instructions and explanations are clear and detailed.

“Another well written book by Peter Smid”
- Peter E

Technical readers who are familiar with the CNC Programming Handbook by Peter Smid will, without doubt, also react favourably to this book. The format is similar and there are hundreds of excellent illustrations and programming examples. While the previous book dealt mainly with theory and concepts, this work moves on to real life applications of these concepts. Examples include the use of tapered endmills in programming, multiaxis lathes, custom cycles, knurling, and other tips and tricks.

Find review and best offer on CNC Programming Techniques: An Insider’s Guide to Effective Methods and Applications from this site.

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I am interested in working with my hand. In future I would like to design and develop my own parts and create IC engines and model turbine jets. I am currently working as a CAD/CAM designer but no idea how to go about becoming a machinist or CNC operator. Is it hard to operate CNC machine or milling equipment to be able to achieve my goal?

Any help is appreciated. I am looking to gain experience and knowledge to further my goal.
Equipment wise, what is good to start off? I am looking to milling equipment then eventually when parts need be machine accurate, I’ll move on to CNC.

Job description for CNC Machine Operator: Responsibility of a CNC programmer is to write computer program or software which contain commands for the machine to run. The CNC machine will follow what has been instructed in the software so they can function correctly. Now come the part for CNC machine operator who take over the machine and prepare it as well as perform necessary task. They download and install the software, fix the needed tools as well as metal (or plastic in other case) that is to be shaped into the equipment so they can perform a test run.

If a CNC machine operator detect any errors or problem with the equipment then he needs to fix it and modify anything necessary in order for the machine to run properly. The CNC machine operator will then run the required amount of product.

As a CNC machine operator he will continue to look after the equipment for any problems that might occur. Too much vibration in the cutting tools is among the problem which can be detected by hearing. This problem diminishes quality of the product. The plastic or metal, known as workpiece, is needed be checked if it cooled or lubricated adequately. One CNC machine operator may need to watch over several machines.

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The CNC Training Academy based in Leamington Spa has expanded its CNC Programmer Training provision to include a range of advanced cnc machine training courses for users of machine tools with Siemens CNC Machine controls. The new Programmer courses now available are aimed at Siemens Sinumerik 840D control users with (i) horizontal and vertical 4-axis machining centres, and (ii) twin-spindle/twin-turret mill-turn centres. Both courses are four days long, and are covered by The Academy’s ‘easy payment’ terms that allow manufacturers to spread the cost of their training over 12 months into smaller, more manageable monthly payments. For those who are interested can call their Sales at: 01926 736736 or contact them using this form.

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Worldwide leader in the rapid production of complex castings and machined parts using a wide variety of metals and plastics, has allowed the company to recently expand its capacity by adding a 5-axis vertical milling machine (VMC) to its stable of CNC and milling machines. This is the sixth five-axis VMC for Clinkenbeard.

The major benefit of five-axis machining is the ability to machine complex shapes in a single set-up. This gives greater machining productivity compared to performing the job in a series of set ups, as well as significantly reducing the time and cost of preparing fixtures.

“Minimizing the time spent on setup operations, reducing overall machine cycle times and maximizing ultimate machine cutting performance are just some of the advantages our customers in industries from aerospace to automotive to diesel engine are used to and will continue to realize with this exciting VMC,” explained Ron Gustafson, president of Clinkenbeard.

About Clinkenbeard

Clinkenbeard is a worldwide leader in the rapid production of complex castings and machined parts using a wide variety of metals and plastics. The company’s principal markets include US defense and government, aerospace, auto racing, diesel engine, heavy truck, marine, industrial, power generation and agricultural. More on CNC machine.

source

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CNC machine tools are praised all over the world because of three major factors: automation, accuracy and versatility. Human (operator) intervention is reduced to minimal levels because CNC machines can run on its own after it is programmed. Also, when the program is perfected, the CNC machine can run the instructions perfectly on its own.

Remember that any CNC machine can also be programmed to do special one-time tasks such as a dry-run, which will help the operator oversee what will happen when s/he leaves the CNC machine to do its tasks alone. Accuracy also goes hand in hand with repeatability. Again, once the program is perfected, the CNC machine can perform that task PERFECTLY even until 7 or 7000 times.

Lastly, versatility also works in the form of “task memory” that these CNC machines have. Once a program has been performed even for just one production run, it can be easily recollected the next time that the company needs the program. This saves time for setting up and loading of different programs.

The CNC sure simplifies the work of thousands of factories and machine shops worldwide. However, no matter how great CNC sounds like, it is something that doesn’t fit in some industries. Like, perhaps, in the cosmetic industry, or in the show-business. Those examples are way too obvious. On the other hand, in these two major mechanical industries, CNC is almost synonymous to “hero”.

CNC In THE METAL INDUSTRY

Think of Metal. Metal. Perhaps the easiest metal that you can imagine is that of…a spoon. Now, imagine ANY spoon done with bare hands. After that, imagine a thousand spoons done with bare hands. It’s so tedious you might even consider suicide if you are assigned to such a job.

The metal industry has been operating on CNC for ages. In fact, if you search CNC in the internet, you will instantly find metal companies topping the list. The major CNC centers that you will find in most metal machining processes are “CNC turning centers”, “CNC machining centers”, “CNC grinding centers” and “CNC drill and tap centers”.

Some of the CNC programs that are connected with the metal industry are milling, drilling, reaming, boring and tapping. Moreover, any metal that has any curved side have experienced some form of knurling, grooving, turning and/or threading.

Fabrication, in manufacturing, refers to processes that are executed on thin plates/sheets. These sheets are cut, punched, and bent to form their finishing shapes. CNC also stars in almost every aspect of metal fabrication.

CNC in THE WOODWORKING INDUSTRY

While the most beautiful wood-worked products are most likely hand-made, you cannot deny that a wide array of tools and furniture HAVE to be NOT hand-made to save time and for mass production levels. There’s just too much work and not to many hands. In light with this, CNC has worked wonders for this industry.

Important woodworking processes include cutting, framing, carving and engraving. The most useful woodworking CNC product is the CNC router table. It is capable of carving elaborate 2D and 3D designs. Moreover, it is also capable of material change while repeating the same design. Since contemporary furniture is often a splash of different materials (e.g. Wood, aluminum and/or plastic), any CNC router is capable of reproducing the same design EVEN in different kinds of materials by just altering the router bit.

Although many local, middle-sized enterprise owners are skeptical about using employing CNC in their manufacturing operations, there have been many success stories to sway them to using it anyway. In the Metal and Woodworking industries, CNC has proven itself time and again to be efficient.

It saves time and efforts in production and (more importantly) back-jobs. If you’re venturing to one of these industries, remember that the word “labor” isn’t something social anymore – it’s technological. And start calling CNC your best friend.

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CNC aka Computer Numerical Controlled Machines are useless without any programming. CNC’s rely on pure hard codes in order to execute commands that the Machine Operator wants to do, therefore not only is it needed to learn the mechanics of the whole Computer Numerical Controlled Machine but it is also at the utmost importance that the Machine operator knows how to communicate with the machine, and that is by using G-codes.

Preparatory code/ functions or much commonly called as G-codes are functions in the Computer Numerical Control programming language. The G-codes job is to manage the position of the tool as well as control the step by step commands during the actual work. Basically the G-codes are the most important part of the Computer Numerical Control Programming algorithm.

There are other codes involved in the programming of CNC’s such as M-codes that manages the machine, T-codes for managing the tools, and F-codes for the tool feed and tool speed controls. All of these codes are created in a Computer Aided Manufacturing (CAM) software.

G-codes as well as the others use the RS-274D as the recommended standard for the Computer Numerical Controlled Machines. This standard was developed by the Electronic Industry association during the 1960’s. These standards provide a basis for the creation of Computer Numerical Controlled Programs.

First designs of these standards came from punched paper tapes as the medium standard for data interchange, but now ASCII character bit patterns are the standard for the representation.

CNC G-Codes

Lets discuss the g-codes further, as what I have said earlier G- codes constitute only a part of the Computer Numerical Control Program, in the whole programming algorithm, they are denoted by the letter G, Basically it is a code telling the machine what kinds of actions to perform in a step by step basis, examples of these actions would be rapid move, controlled feed moves that would bore holes, a work piece cut routed to a specific dimension, change a pallet, and set a tool information such as offset.

After creating each part of the codes, the algorithm is compiled in the Computer Aided Manufacturing (CAM) software. The CAM software basically use translators called post processors to output the code optimized for a certain machine type. Often times, post-processors are often used to allow users to enable further customization.

G-codes can also be used to create outputs for Computer Aided Design systems used to design printed circuit boards (PCB). Any software must be customized for each type of machine tool that it will be used to program. Some G-codes are written by hand for volume production jobs.

Some Computer Numerical Controlled machines use conversational programming. Conversational programming is an easier way to program CNC machines because it is more “user friendly” because it uses a wizard like program that hides the G-codes into plain view. Some Popular examples of this kind of CNC machines are the Southwestern Industries’ Proto TRAK, Mazak’s Mazatrol, and Mori Seiki’s CAPS conversational software.

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The advancement of technology allowed sheet metal designs to be more complicated. However, this level of complication has surpassed human capabilities (as far as mass production is concerned). The required accuracy for the intricacy of the designs can only be provided by Computer Numerical Controlled (CNC) machines.

The Punch press

An example of a CNC machine that is used in sheet metal manipulation is the punch press. This device uses hydraulic, pneumatic, or electrical power to exert immense pressure to shape the metal and cut it according to the designs. Being computer aided, this machine is capable of rapid positioning and therefore, fast production. Manual punch presses compromise speed for accuracy therefore lessening efficiency.

The punch press works by receiving instructions from a program in a computer. This allows the operator to sit back and relax once the cycle (rapid positioning, punching, and switching of tools) has been initiated. These machines perform operations with accuracy that is measured by the thousandth of an inch.

Introduction of these machines into the sheet metal industry sped up production significantly. And to stay competitive in the global market, such an edge would be needed. However, technology finds ways to improve on this.

New devices

Today, presses have newer versions. The turret punch press is capable of sorting sheet metal into their respective design classes. This means that the new punch presses can operate virtually unattended. Steel manufacturing companies invest in these machines should it mean streamlining of their jobs and increasing production capabilities.

Newer CNC machines can even alert operators who are not in the area if a problem crops up during the sheet metal punching process. This happens by enabling the CNC machine to keep track of the operators’ phones. Therefore, the workload of the operator is relaxed to the point that he/she does not even need to be in the area of operation.

The drawback

However, these machines do not come cheap. A lot of time, money, and effort have to be spent in order to operate the machine to its fullest capacity. Furthermore, there is a shortage of people who are skilled enough to operate such machines. An operator has to be knowledgeable with BASIC programming language, fundamental machining processes, design awareness, and accessory functions.

Furthermore, knowledge of Computer Aided Design and Computer Aided Manufacturing (CAD/CAM) is a big factor in being able to control such machinery. So the capital that you have to spend on understanding these machines have to be justified with the caliber of the operator that you have.

Another drawback that is present is the compatibility of the machines with the current technology that the company has. If they are incompatible, it takes even more time and money to replace current facilities or to restructure the factory in order t accommodate such devices.

The Conclusion

so, if you’re a big company and you want to stay in the race, you have to consider and reconsider investing into these things. The investment may be worth itself a hundred times over but it is a rather risky choice to step into something new. You have to restructure your work schedules, change the requirements for operators, and provide proper training to operators that you want to keep.

These things will cost a lot and will take a while before they reflect what they really are worth.

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