Monday, January 25, 2010

Spray Formed Aerospace Alloys

Background

Spray forming minerals separated from the hardening of the benefits of combining the low and improve the convenience and near-net shape processing of useful micro-production costs. They can provide the production of certain components, such as rings and atmosphere of the engine and unique advantages. Particle size of the engine to provide more air to increase energy, manufacturing and coating large diameter and guarantees need to be more difficult. Spray formulation provides a way to create a more important, because it allows the use of non-current in manufacturing and other means the possibility of alloy. It provides a way characteristic of improved production, and ultimately could lead to bigger, more powerful aircraft.

Date
Spray forming of the 20th century, the Osprey Zenith 70 years of metal business, is often known as the Osprey's. Licensed, covering all major osprey, copper, iron, alloy and manufacturers. In its production facilities, the German production of C-containing alloys (3.500 tonnes) to be used as Mercedes-cylinder liners, and International Technology Spray form (industry), large groups of diameter of goods United States (500 tons of pink) in the air industry.

Process Hearing

Process explosion is simplified, as shown in Figure 1. - 500 microns down. This decrease was stored in the translation of growth below the surface of the composition of the spray cone spray, you can leave some liquid spray composition of relatively slow cooling and consolidation .

Other Alloy

The development of such material foil alloy high strength and high temperature alloys 2xxx series of procedures. In alloy foil, the commercial capital can throw alloy containing up to 8% by weight of zinc (such as 7, 449 and 7055). However, the spray can make alloys containing high SIM to 11-12%, compared with the zircon component of the normal level, like 11.5Zn - 2.5mg - 1.0Cu - 0.2Zr. Forging show increased strength and durability of the alloy at 7075 and 7050 traditional mix. 2xxx series alloys also developed the copper, manganese and other high level content of dispersion, such as zircon, V and T in the form of higher performance than traditional metal haluang high temperature 2618. UL40 and high 7xxx series alloy, zinc alloy, as well as other minerals available space, Osprey.

Although the number of alloys to form a new company formed specifically for the spray, all kinds of markets and the application of aero-engine alloys technical requirements, focusing on the development of the spray in reducing the formation of the current costs of manufacturing alloy. However, due to the formation of clouds, and gradually establish a market position, develop, such as sexually transmitted diseases, follows the developments and precious metals are gold.

Model Spray / hot isostatic pressing

Because the spray-type / Traditional by eliminating the large diameter alloy shell limit hip alloy composition has a significant reduction in rolling, spray forming a circle near the composition of cast alloy high temperature applications possible. These alloys are investigating the Osprey is now in advanced materials and vehicles (OCAMAC) units, the number 2 Oxford Center recently installed. The purpose of this study is to ring, and the temperature of operation and improved mechanical properties of skin, relatively low additional cost.

Feasibility

The formation of micro-structure to improve the spray ready to give good mechanical properties of materials have been established in the amount of space. Forward spraying the rest of the formation of one of the challenges is to realize the potential of the production environment in economic interests. Economic vitality of central government is to maintain raw material efficiency of conversion of liquid metal to form the aerosol products. The results of the process of risk control the drip line bad (spray), spray droplet excessive, or rebound, on the surface of the configuration, not a spray and metal products, and other forms of poor quality, high porosity. In all its aspects, and how to use, and investigated the universities and research laboratories and companies. For example, Cospray implementation OCAMAC and coordination of the spray on the company's line of a vision made of alloy, thereby reducing the change in Qatar and 1 300 mm, from beginning, the daily control of ± 10 mm diameter ± Mi Hao 1.

Processing Conditions

Although the form of control is the current standard, the system of production, quality and conditions of the metal is usually predetermined, not to manipulate the Internet. Some alloy compositions show notable sensitivity to changes in the conditions of injection molding, some people are more tolerant, increasingly low porosity, excellent micro-scale spraying. Volume between the condition and better spraying the alloy composition explanation of the relationship of development. Similarly, understanding, and thus control the formation of pores is another little attention.

On the other hand, recently made important progress in understanding of others, in the case of biological processes forming a jet. In the solid particles, as droplets of liquid water mist larger nucleates important certification from the shaft structure with micro-layer coating of the spray transition on thermal conditions to quantify. The importance of spray droplets is less bounce back after the process of harvesting of advanced laser and high imaging techniques of speed. This is another example of impressive obstacle to improving basic understanding of the broad sense to control the formation of the spray - which formed the conditions for measuring the spray line is often difficult, because activities of special recovery, and often require special technology.

Abstract

Spray forming the transfer from laboratory to production of nickel and aluminum space for a good environment, both in improving performance and lower costs can be achieved. Trend likely to continue, but the benefits are lower costs and better meet the increase in the use of the Member States to spray the formation of unusual circumstances alloy development,. Thailand is a basic understanding of the factors in the continued growth of the commitment, control of micro-structure and production, this can significantly through the use of simulation techniques and advanced diagnostic model for their assistance.

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