Archive for December 8th, 2015

08 DecDifferent Types of Hydraulic Hose Fittings

Hydraulic hoses generally use the distribution of water in order to operate or move a piece of machinery. The hose fittings that are used in hydraulic systems are connected to and transmit hydraulic power to another device. Depending upon the source of connection, hydraulic hose fittings are classified into different categories such as O-ring, flareless, elbow, pipe, flanges and face seal. The standards of these hose fittings on machinery are set by the Society of Automated Engineers (SAE).

Some of the features that differentiate different types of hose fittings are:

  • O-Ring – These fittings resemble an “O” with a number of threads that are screwed into the pipe or the hose fitting to provide a secure connection. These fittings can be male or female and can consist of a face seal, flat-faced or flange type. These rings are designed in a way that they can hold a pressure of about 2500 to 3000 psi.
  • Flareless – These types of fittings consist of a ferrule body that tightens on to the fitting nut and compresses the tube in a way that it penetrates the outer diameter of the tube and seals it. Flareless tube type require less tube preparation and can withstand a pressure of about 3000 psi.
  • Elbow – these kind of hydraulic hose fittings are available in different sizes which are basically 45 degrees for both male and female along with 37 and 90 degrees. As indicated by the name of the fitting, both ends of the fitting are connected to the hose at the designated angle. Elbow is usually used in plumbing applications.
  • Flanges – flanges are designed for those kinds of tube fittings that are larger than an inch in size. Torque power as well as large wrenches is needed to tighten these types of fittings. Split-flange fittings differ because they generally use O-rings to seal a connection.

Steel fittings are other very common hydraulic hose fitting that are being used in the hydraulic systems. However, due to certain factors such as corrosion and non-flexibility, steel fittings have not been able to replace the hose fittings in many of the domestic as well as commercial areas. All metal fittings are usually considered inferior, whereas O-ring types of fittings are the standard fittings that are used widely in modern hydraulics. Custom-built component parts are a newer feature of some of the hydraulic machines that simplifies the device assembly, allowing pipes to connect directly to the device.

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

Article Source: http://EzineArticles.com/7276293

Share

08 DecCutting-Edge CNC Lathes and Efficiency

Modern production schedules require machines that can manufacture and finish parts at a rapid pace and also with a very high level of consistency. The humble lathe machine that at one time was purely mechanical has now morphed into modern CNC lathe with a very high degree of automation and accuracy.

Uses of CNC lathes

CNC lathes are usually used on metal components that require some material to be cut out through turning. They are also used to drill multiple holes including centered holes usually in blocks of metal. However, modern CNC lathes are also used on other materials including plastic and wood. Lathe machines are widely used for making cylindrical parts such as gears, crankshafts, etc which require a very high level of accuracy as manufacturers compete to produce engines and gearboxes that are more silent and efficient than their adversaries. Manual lathes such as the turret lathes, engine lathes and special purpose lathes were previously used but with a rise in production levels automated CNC lathes offer higher production output with fewer errors, while the manual ones are still used by smaller workshops.

Modern types of these machines can make short work of a job-work

Modern types of these machines are a combination of a computer with a lathe machine and a controller that converts each digital signal into the desired action. Specialized software is first used to create the required design that needs to be replicated physically on metal, wood, etc. Next, the job-work, work or work-piece is fitted on the chuck and rotated at slow or high speeds depending on the material and the type of cut or centering required. The program instructs the lathe machine on the type of cutting, drilling or centering required including the depth and width. While older lathe machines could only do cutting functions, newer machines can do cutting and milling and the high end ones can even have four spindles to perform multiple jobs simultaneously, thereby reducing operations and improving productivity.

The latest CNC lathes require an operator to oversee the mechanical process, which in the past would have required one or two operators for actual physical work. A programmer is also required to compile the software commands needed to instruct the machine to provide precise cuts or holes. The tool bits that are required to cut through steel are usually made of titanium carbide, tungsten carbide, etc depending on the material that needs to be cut. The tool bits are used until the tolerance levels are maintained after which they are either sharpened, if possible, or simply replaced with a new bit.

Advantages of using CNC lathes

The advantage of using CNC lathes is that it offers a very high level of accuracy in drilling, cutting, milling, etc while also maintaining optimum production speed. With the advent of computers, the risk of physical injury to the operator is also reduced while the software offers manufacturers a chance to give shape to products that would not be possible if manufactured by hand. While small and medium sized CNC lathes are used by workshops to craft products that might have gone out of production a long time ago, such as parts for antique cars or even for older machines, larger lathes are usually used on the production line to manufacture parts in large quantities.

The advent of newer technologies has turned the humble lathe machine into CNC lathes capable of converting any creative thought into a real shape. Various models and sizes are used for specific purposes and CNC lathes do not need to be taught the entire process every time a new tool is attached thus saving time, effort and money while offering safety, efficiency and accuracy.

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

Article Source: http://EzineArticles.com/3455603

Share
Tags: