CAM: A Vital Component of CNC

CAM: A Vital Component of CNC

Computer Aided Manufacturing started being used by automotive and aerospace component manufacturing companies. This sped up the manufacturing process and thus increased efficiency ratings. However, the introduction of CAD into the industrial sector did not eliminate the need for skilled professionals.

In fact, the operation of this program requires a higher degree of skill in terms of being computer literate.

Flaws

The CAM system is a flawless solution. However speedy the system becomes, it still has faults that may hamper production. Since CAM generates a code for the least capable machine, an improperly set CAM software required heavy manual editing. In this case, editing such a code is a tedious and drawn-out process that takes a lot of time and effort (something that big-time companies cannot spare).

Another problem that you have to face is the data exchange that has to take place when integrating CAM with other components (CAD/CAM/CAE PLM). It becomes necessary for the CAM operator to export the data in a more compatible data format. And since the output stack of CAM is a G-code text file—sometimes containing thousands of commands—the operator is then faced with a very serious time problem.

CAM cannot reason. In this case, it cannot figure out the right toolpath for mass production. Operators would still have to select the type of tool to be used, the machining process that should be followed, and the path to be used. This means that the CAM cannot adjust to wear issues and sudden changes. It needs to be reprogrammed to be able to work efficiently. Furthermore, mass production increases the likelihood of errors to occur in the production cycle.

PROS

CAM can cut cycle time significantly. This means that with the proper people and the proper tools, a more efficient production method can be obtained. A lower cycle time means that you can produce more components in a lesser time. And since the main users of CAM and CNC are big manufacturers with deadlines, it is of the utmost priority to cut cycle time.

Another advantage that could be gained by CAM software is the increase in machine life. Since the process is automated, the system can keep track of certain variables that allow it to adjust to the conditions of the machine that is operating under it. This means that the life of the machine can be extended by adjusting the performance of the machine in order to avoid overworking it.

Quality can also be taken into account in this scenario. It is because the system also monitors slight differences in the production environment. Furthermore, the intricate designs that cannot be achieved by human engineers can be achieved by the machines. Also, these designs can be completed at a faster rate compared to manual operations. Another factor that should be considered would be the error ratio of the production of any components.

Conclusion

So, CAM is a very important aspect of production. However, the need for skilled operators still exists as programming and setting up these machines decide the fate of the manufacturing process. However, the increased automation and efficiency provided by such a system makes programming and setting up of these systems the only jobs of the operators.

This also allows operators to be more productive as they do not have to watch any single machine for more than the required amount of time.

Reduce Stomach Gas The Natural Way

Reduce Stomach Gas The Natural Way

Are there natural ways to reduce the gas you pass? Try preventive measures first. Learn how to move gas through your intestines more readily.

While there are several reasons you may find yourself to be gassy, there are many solutions for reducing belching, flatulence, abdominal bloating and pain. Excess gas commonly is associated with irritable bowel syndrome. Other serious gastrointestinal disorders usually produce other symptoms besides just being “gassy.”

Doctors usually recommend a plan to help move gas through the intestines more readily, combined with preventive measures, such as eliminating certain foods from your diet and avoiding chewing gum. Although many products on store shelves promise to help, their success is not guaranteed and often depends on the individual. There are also prescription medicines and some alternative therapies.

Keeping a diary of the foods and beverages you consume can help you systematically eliminate one food or group of foods at a time to determine which may be most responsible for your symptoms. One of the first questions at the top of the list would be ‘Could this be related to dairy products?’. If it is, the first step should be to eliminate these products from your diet for about seven days. If you feel better, then try to add dairy products back to your diet in smaller amounts to see if you can tolerate them.

There are some recommended home remedies and lifestyle changes. Chew more slowly and thoroughly because gas can be a sign of undigested food, the enzymes in saliva begin the first stage of breaking down food in the body’s absorption process. Avoid foods you know cause indigestion. Common food sources of gas include Brussels sprouts, bran, beans, milk products, cabbage, artificial sweeteners, carbonated beverages and alcohol. Take a short walk after you eat to prevent gas accumulation.

Maintaining a regular exercise schedule in the form of walking, jogging and calisthenics will help stimulate the passage of gas through the digestive tract. Perform chest-to-knee stretches. Lying on your back, bring your right knee to your chest. Hold for 10 seconds and, then repeat with the other knee.

If those remedies don’t provide relief, your doctor may recommend that you take an over-the-counter antacid, activated charcoal, or a lactase or bismuth product.

Antacids contain aluminum hydroxide, magnesium hydroxide (known as Milk of Magnesia), calcium carbonate, or other ingredients individually or in various combinations. Antacids help to control the symptoms of gastroesophageal reflux disease, a condition in which the stomach’s juices (acid and digestive enzymes) flow backward, or reflux, into the esophagus.

Tablets of activated charcoal may provide relief from gas in the colon. Studies have shown that when taken before and after a meal, lower-intestinal gas is reduced.

However, activated charcoal can cause black stools and constipation. While these are harmless side effects, black stools can be confusing to a physician, because color changes in stool can be a sign of a serious illness. Evidence concerning the benefit of activated charcoal is contradictory. Its effect in alleviating symptoms of intestinal gas has been supported by some studies yet refuted by others. As a result, physicians may recommend that patients consider trying activated charcoal to see whether its use results in some symptom relief. The usual dose is two to four tablets taken just before eating and one hour after meals.

Gas is often a symptom of lactose intolerance, which makes digesting dairy products difficult. It occurs when the body has too little of the enzyme lactase in the small intestine to break down lactose, the main sugar in milk and milk-based products. Although lactose intolerance can happen at any age, it tends to affect most people as they grow older. Lactase comes in liquid or tablet form. Adding a few drops to milk before drinking or chewing lactase tablets just before eating helps people who have difficulty breaking down lactose.

Bismut has salts to relieve inflammatory conditions of the stomach and intestines and can sometimes relieve gas. It also reduces the odor of unpleasant smelling gas caused by hydrogen sulfide, a sulfur-containing compound. Like activated charcoal, bismuth may result in black stools. Take before or after meals, on either an empty or full stomach.

In summary, stomach and intestinal gas is normal. Excess gas can be distressing, but rarely is it caused by a serious medical disorder. If your symptoms cannot be easily controlled or you have additional problems such as abdominal pain, change in bowel habits, or rectal bleeding, you need to contact your doctor’s office.

Computers In Libraries Won’t Replace Books Anytime Soon

Computers In Libraries Won’t Replace Books Anytime Soon

The idea of a paperless society has been the dream of computer enthusiasts for many years. Along with the “cashless society”, the hope that computers would replace the written word has resonated through sections of American society for many years. Although home computer usage has grown incredibly in the last 15 years making this seemingly possible in the near future, government agencies are slow to catch up. Libraries will have shelves of books for many years too come.

With home computer and Internet usage at an all time high it is no surprise that public libraries are struggling to make ends meet. Research that would have in the past required the use of a library can now be done much faster using a home PC and a few hours on Google. Couple this with the fact that library computers are generally out of date and over crowded, home research becomes the obvious choice. The Bill and Melinda Gates Foundation in association with the American Library Association (ALA) recently funded a study that shows the demand for computer and Internet services has stretched existing library resources to capacity. The study also shows that “more than 73% of libraries reported that they are the only source of free public access to computers and the Internet on their communities”. Although there is clearly great demand for these resources, there is little growth ahead. During peak usage hours it is not uncommon in some communities to have an hour wait time for computer access, and only 25% of all libraries report they have the computers to meet demand according to the ALA. Most libraries have not had a substantial increase in computers or technology since 2002.

This lack of technology is doing the most harm to the poor. Americans who have home computers and a fast Internet connection may not realize that large portions of society are cut off from the potential this technology can bring. Many Americans are now at the point where they could not imagine not being able to access the Internet, and the knowledge that would be denied is enormous. As a bastion of knowledge it has fallen to libraries to upgrade their capabilities and help more people access the information they need.

Cost is an issue in upgrading the existing public library technology infrastructure. Tax revenue is still the primary method of funding public libraries, but local government taxes have not been enough for a long time. It has become necessary to increase fines associated with library use and solicit donations in order to make ends meet and provide information services to patrons in need of a computer. Even using older refurbished laptops and desktops that have been donated or purchased has not offered enough saving to allow libraries to catch up to demand.

A new method of cutting costs and reducing computer wait time is wireless networking. By using wireless and Satellite Internet more than 17% of libraries claim they can reduce wait time by becoming a “Wireless Hot Spot” and allowing patrons to access the Internet from their own laptops as well as the library’s. This solution also solves many bandwidth issues libraries are having, but not all. Considering that some libraries still use dial-up Internet access any improvement in this area would be helpful.