Injection molding

THEORY Injection molding is the most commonly used manufacturing process for the fabrication of plastic parts. A wide variety of products are manufactured using injection molding, which vary greatly in their size, complexity, and application. The injection molding process required the use of an injection molding machine, raw plastic material, and a mold. The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part. Figure 1: Injection molding. Injection molding is used to produce thin-walled plastic parts for a wide variety of applications, one of the most common being plastic housings. Plastic housing is a thin-walled enclosure, often requiring many ribs and bosses…

different guises; injection molding, multi axis milling. Then again, these methods suffer worse from wastage than additive manufacturing due to the multiple steps involved rather than building from a raw material. This begins with the effects of tooling, which are needed to either mold inside of or tools used to remove material during milling; Table 1 represents the effects of tool manufacture (Morrow, Qi, Kim, Mazumder, & Skerlos, 2007). Table 1. Tooling supply chain manufacturing operations…

years of publicly disclosed financial information, the company has been losing profitability as it grows revenues; moreover, its profit margins are a fraction of those of its competitors ("Securities", 2011). Reduced profitability will prevent the company from offering additional price cuts. If large competitors decide to engage in a discount pricing strategy, Applied Medical 's leadership position in the trocar market will be threatened by products with prominent brand recognition and similar…

Introduction 1.1 Polyurethane polyurethanes were first developed by Otto Bayer and coworkers in 1937. Shortly thereafter, Schollenberger and coworkers used formula modification to prepare elastomeric polyurethane products from Bayer's products that were like nylon or other engineering plastics in physical characteristics. PUs are widely used in coatings, flexible and rigid foams, elastomers, and composites. Reasons for the use of polyurethane coatings include: high performance characteristics…

a. Observation. Ms Kowaluk, Stephanie, Fitness Center Manager. It was noted during the inspection that the fitness center manager is doing an excellent job maintaining an accurate log of all deficiencies and documentation of her employees completed training. b. Fire prevention. It was noted that all the fire extinguishers located throughout the facility are not being inspected monthly as required and were overdue annual maintenance. IAW NFPA 10, fire extinguisher shall be subjected to…

The wind blew open the windows. Conan heard a thump as his bedroom door opened. It was a rainy day, one of the worst storms that Conan and his dad, Billy, had experienced, was happening in France. As Billy came in to wake up Conan the thunder got louder and scarier. Conan woke up to the sight of his dad crying and rested in bed for a while, puzzled, at what was happening. His dad told him that the church was in shambles where they had been doing most of their labor for the past six months. Conan…

are taking. It is important that patients bring all of their medications to their doctor’s appointment. Patients need to inform their doctor about their allergies and adverse reactions to medications. When a doctor writes a prescription for a medication make sure that you or the patient can read it. It is vital that the patient ask for information about their medicines in terms you can understand. If you have any questions about your medication label be sure to ask the doctor. Another important…

After the Georgia General Assembly altered the state’s legislation concerning the death penalty, it was able to be reinstated. In 2001, Georgia abandoned the use of the electric chair. According to BBC News, the state court ruled “that death by electrocution ‘inflicts purposeless physical violence and needless mutilation that makes no measurable contribution to accepted goals of punishment’” (BBC). Simply stated, this ruling decided that the electric chair violated the constitution’s eighth…

favor of “death with dignity” as opposed to the 37% who were voted in favor in the poll from the early 1950s (Humphrey). There are multiple methods of euthanasia, and some are far more acceptable than others. The most commonly seen, and most accepted, method is administration of a controlled and lethal overdose of normal medications, such as phenothiazines like prochlorperazine,chlorpromazine, triflouperazine, and perphenazine. In large enough doses, these are all lethal. They can be prescribed…

and wrong, or what is just and unjust. Throughout time the main discussion was around the method used to euthanize a prisoner on death row. That discussion remains even now as many states are struggling to find an alternative to lethal injection. Some of the states are doing away with the death penalty all together which can cause a problem with having enough space for inmates. The need for an alternative to lethal injection has come about for two reasons. The first reason is because the states…