Friday, 12 October 2012

Some Valuable Information about CNC Turning and Milling

In today’s engineering industry, countless machines operated manually are nowadays operated by computers. Wheels, levers, handles or several other manually operated machineries are substituted mechanization in one or the other way.

The precise engineering machine like milling or lathe machines are frequently controlled by numeric or computer controlled. Computer numerical control CNC or, numerical control NC is denoted as the computerization of machine tools that are programmed on a storage intermediate which are operated by encoded instructions.

NC machineries were constructed for the first time in 1940s and were planned by applying paper tape and holes were thumped into it at certain definite points. These types of premature systems were surpassed with the intensification of analogue and finally digital computers.


In CNC turning and milling, end to end part design is preset by utilizing CAM or CAD programs. As soon as the program is put onto the milling or vertical lathe machine, it is ready to produce. Few machined parts need a variety of tooling elements like tapping, reaming, drilling etc. And the latest advanced machines will merge he tools within a lone cell. This cell will essentially rotate or move use the mandatory tooling application. As a result this will be prohibited by the CNC system.

These days in intricate modern machineries, like CNC Milling machines the parts can be removed from machine to machine repeatedly just by human involvement, computer handled robots. However in both the alternatives the steps to manufacture the parts are highly mechanical the end part should match the CAD design necessarily.

A lathe is a type of machine to spin a certain piece of material such that a cutting tool can reform the shape into a constituent of round cross section and also to execute screw cutting maneuver. Horizontal or vertical lathes are considered as significant machine tools and possess widespread designs. The parts are set in rotational motion and the material is sliced by a tool which is given a perfect amalgamation of linear movements like radial and axial movements.

Milling is a type of operating machine where the parts are reformed into a shape by a rotating cutter whereas the parts carry out axial and radial movements. In true meaning the milling cutter consists of a circular disc whose rim is supplied with cutting edges. The cutters comprise a wide variety of shapes and types. The work is supplied at the teeth of the cutter when the motion of supply is vertical, transverse or longitudinal according to the character of the work and category of milling machine. CNC milling machines may be either horizontal or vertical.

Wednesday, 5 September 2012

CNC milling machines and their features

CNC milling machines can be used for hobby and prototype market. There are various providers in the market that provide complete CNC solutions. These machines are designed and created by the factory as CNC machines. Here are top three models of CNC plasma milling machines along with their basic features.

Milling Machine CNC
  • This is a complete factory built CNC milling machine
  • The machine has 2/3 horsepower spindle motor drives and 2 Morse taper spindle
  • The electronics are built into the machine
  • The fourth axis driver that is used is include at absolutely no extra charge
  • It also includes fully licensed copy of Mach 3 software
Milling Machine CNC, Tormach PCNC 1100 series 3
  • This is used as a personal CNC milling machine
  • The vector technology spindle drive 1100W continuous, 2800W peak
  • Comes with a table size of 34” x 9.5”
  • It is a high performance stepper motor that comes with microstepping drivers
CNC milling machines Tormach PCNC 770 Series 3
  • This is also used as a personal CNC machine
  • The table size is 26" x 8"
  • Travel: 13” x 7.5” x 13.25” (X, Y, Z)
  • High performance stepper motors with microstepping drivers
Search the web to find out such machines. Apart from this, you will also find CNC plasma kits!

Wednesday, 8 August 2012

Cutting Instrument - Cylindrical Grinder

Grinding can achieve a very high level of precision. While, grinding a flat surface is the most common type of grinding operation hence cylindrical grinding certainly has its place in precision machine tooling. Generally grinding a flat surface is the most common type of grinding operation. Therefore, cylindrical grinding definitely has its place in precision machine tooling. This grinding offers higher degree of flexibility and complexity. Cylindrical grinder work pieces differs from the operation of a lathe in one important manner in that the cutting instrument, the grinding wheel, circumduct as well as the work piece. Both items usually rotate at unlike diversified speeds, which require a precise calculation to determine the optimal cutting speed.

This operation is not unlike that of a lathe where a cylindrical work piece is rotated and a cutting tool is brought adjacent to it to cut it down to a desired diameter measurement. Work pieces can be ground to an exceptionally high finish and to within plus or minus 0.002 millimeters in width, or better. Those people who are still judging in the ancient feet and inches dimension system, that's a very inspiring and remarkable plus or minus one ten thousandth of an inch. It is about one thirtieth of the diameter of a human hair. Hence, for operations that require absolute precision, coupled with the extremely high level of fine tolerance possible makes cylindrical grinding very suitable.

To your surprise, the surface finish of an efficiently carried out grinding process is usually much finer than that of a lathe machine tool operation. Well, a silky glassy finish lacking any obvious machine ridges is typically achieved.

Tuesday, 7 August 2012

Know Benefits of CNC Milling Center Machine and Roll Plates

In this determined economy, manufacturers are time after time looking for productive ways to accomplish their parts production operations. One of the most common ways is by using CNC milling center machines. These machines are mainly used in performing cutting and drilling operations. On grounds, these machines have created a successful impact; therefore it is observed this machine is capable of fabricating components precisely which is important in boosting profitability of one's business.

Here are the benefits of the particular CNC machining center that every user should know:
  1. This machine that is CNC milling machine is exclusively designed to perform precise milling tasks. There are varieties of milling machine ranging from high level to the low level. There are varies types of horizontal as well as vertical milling machines too.
  2. This machine holds the strength to fabricate wide spectrum of components. Generally in most factories or in shop, there are several CNC milling machines that are used to fabricate components including axis of 3, axis of 4 and axis of 5 machining centers.
  3. Lets give a glance on controlling the device. The majority of these machines are controlled by the integrated software.) In order to improve the high precision machine performance on a long term basis on occasional basis the software is updated. Therefore before the operators start operating the machine he is expected to be proficient in G-code programming and other conversational programming.
Mainly CNC milling machines are controlled by integrated control software, every single movement of the cutting tool is derived from G-codes. Therefore, as an operator, it is necessary that you should be familiar with Computer-aided manufacturing (CAM) software as it is a compulsory skill needed to perform high precision machining operations.


One more kind of equipment is roll plates. The roll plate line consists of a numerous single pinch and double pinch versions to select from. As it only has three rolls, it is a small investment for the operator’s need. At the same time, we need to keep an eye on double pinch bending rolls as they have four rolls. These four rolls allow them pre-bending and post bending all in one course. Therefore it conserves the entirety production time.

It is very important to know and match a metal's temper and yield strength with customer's application. The specifications of the roll plates should be known very keenly. As we all know that mild steel no more exist. Therefore, this is especially important since steel characteristics have changed drastically over the past couple of decades. All the machineries accomplish defined measurements at 50 percent of the full-rated value. Therefore, given one point one roll geometry, a three by eight-inch machine with a 10-inch top roller can all over again and again roll Three by six 16-inch plates to 11-inch ID without any defect.

Wednesday, 25 July 2012

Know About Hydraulic Plate Rolls

The roll plate line consists of a numerous single pinch and double pinch versions to select from. As it only has three rolls, it is a small investment for the operator’s need. At the same time, we need to keep an eye on double pinch bending rolls as they have four rolls. These four rolls allow them pre-bending and post-bending all in one process. Therefore it saves the total production time.

It is very important to know and match a metal's temper and yield strength with customer's application. The specifications of the plate rolls should be known very keenly. As we all know that mild steel no more exist. Therefore, this is especially important since steel characteristics have changed drastically over the past couple of decades.

Hydraulic Plate Rolls
is high-technology and high definition units that are as good as laser in terms of performance and accuracy, in the latest world of technology there are available plasma cutter nowadays that are computer-operated and can make business processes with ease and have a tendency to simplify certain production processes. Computer is used here; the hard disk is used to store different dimensions and specifications of the cuts to make sure that the cut will be more precise and accurate.
All the machineries accomplish defined measurements at 50 percent of the full-rated value. Therefore, given one point one roll geometry, a three by eight-inch machine with a 10-inch top roller can all over again and again roll Three by six 16-inch plates to eleven inch ID without any defect.

Tuesday, 26 June 2012

European Hydraulic Shear



Meaning

A shear is a machine with blades and rotary disks that is used for cutting sheets, plates of bars made of metal. Hydraulic shears are shears that are mechanized using hydraulic power. Hydraulic power consists of fluids, mainly water, which is highly pressurized to perform actions. Hydraulic power is used to apply great force that is needed to complete heavy duty engineering works.

Applications


Hydraulic shears cater to the needs of workshops which need intense pressure.
They facilitate various metal shaping and bending works in industrial workshops. They occupy lesser space, yet provide all the benefits of using a mechanized shearing machine, like reduced maintenance, quick and continued usage etc. They may be used to type and fabricate metallic factors and profiles, in addition to altering material strips and profile blanks into any preferred shape.

Engine Lathe - Meaning and Applications

The engine lathe is considered the father of all other machine tools owing to its basic mechanical elements being integrated into other machine tools. It is also called a reproductive machine because it can be used to produce other machine tools. It is, basically, a horizontal metal-turning machine that is of prime importance to an industrial workplace. Its main function is to change the shape, size or finish of a work piece that is revolving using different cutting tools. It is commonly used to create metal parts that are components of engines.

Mechanical parts of an engine lathe
  • Headstock
  • Tailstock
  • Carriage
  • Bed
Factors determining the engine lathe size
Following are the factors that determine the size or machining capacity of an engine lathe:
  • The swing
  • Length of the bed between the head and tail stock centers
Products
Engine lathe may be used for the following:
  • Spinning sheet metals
  • Making square blocks
  • Creating shafts
  • Drilling
  • Candle cup dies
  • Forge burner nozzles
  • Foundry pattern core boxes
Hazards
  • Eye injuries resulting from flying metal pieces
  • Skin disease from coolant
  • Cuts and other wounds from sharp edges
  • Injuries as a result of dropping heavy objects such as chuck or stock
Safety guidelines
  • Avoid wearing jewellery while operating the machine
  • Keep the area around the machine free of coolant or oil
  • Use a hoist for heavy lifting
  • Keep all kinds of tools and equipment away from the machine while in use
  • Keep work area and lathe free of debris at all times