3D printer (Objet 260 Connex)
DESCRIPTION
The Objet260 Connex is your gateway to the world of multi-material color 3D printing. In a single print job, you can incorporate a wide range of material properties to vary translucency, rigidity, thermal resistance or color.
LOCATION
Machine Shop, Building 1A, Undercroft. Opposite to Material Testing Lab.
CONTACT INFO
Abdul Shukoor. Email:
CNC Milling Machine
DESCRIPTION
A CNC (Computer Numerical Control) Milling machine is a machine tool in which the work is held on vice or clamps and rotating tool is used for metal cutting. Material removal shall be done by rotating tool against fixed Job. Operations that shall be performed in this machine are Milling, Profiling, Drilling, Boring Thread cutting, Grooving, Reaming and Tapping . Most CNC milling machines are also called machining centers are computer controlled vertical mills with the ability to move the spindle vertically along the Z-axis. This extra degree of freedom permits their use in all types of milling, die sinking, engraving applications, and 3D surfaces such as relief sculptures. When combined with the use of conical tools or a ball nose cutter, it also significantly improves milling precision without impacting speed, providing a cost-efficient alternative to most flat-surface and profile surface work. As material passes through the cutting area of a milling machine, the blades of the cutter take swarfs of material at regular intervals. Surfaces cut by the side of the cutter (as in peripheral milling) therefore always contain regular ridges. The distance between ridges and the height of the ridges depend on the feed rate, number of cutting surfaces, the cutter diameter. With a narrow cutter and rapid feed rate, these revolution ridges can be significant variations in the surface finish. CNC machines can exist in virtually any of the forms of manual machinery, like horizontal mills and Vertical mills. CNC Milling machines are practically always programmed with CAM. The operating system of such machines is a closed loop system and functions on feedback. These machines have developed from the basic NC (NUMERIC CONTROL) machines. A computerized form of NC machines is known as CNC machines. A set of instructions (called a program) is used to guide the machine for desired operations. Some very commonly used codes, which are used in the program are. The Control used in CNC milling is Fanuc Oi.
LOCATION
Machine Shop, Building 1A, Undercroft. Opposite to Material Testing Lab.
CONTACT INFO
Abdul Shukoor. Email:
Lathe Machine
DESCRIPTION
A lathe is a machine tool in which the work is held and rotated, while tool is fed against the work. Material removal shall be done by rotating job against the tool. Various operations can be performed in a lathe are Turning, Boring, Drilling, Thread cutting, Grooving, Reaming, Tapping, Face grooving, Trepanning and Parting. Almost all lathes have a bed, which is (almost always) a horizontal beam. There are turning lathes specialized for turning large bowls often have no bed or tail stock, merely a free-standing head stock and a cantilevered tool rest. In addition to the spindle and its bearings, the head stock often contains parts to convert the motor speed into various spindle speeds. Various types of speed-changing mechanism achieve this, from a cone pulley or step pulley, to a cone pulley with back gear (which is essentially a low range, similar in net effect to the two-speed rear of a truck), to an entire gear train similar to that of a manual-shift auto transmission. Some motors have electronic rheostat-type speed controls, which obviates gears. A workpiece may be bolted or screwed to a face plate, a large, flat disk that mounts to the spindle. In the alternative, face plate dogs may be used to secure the work to the face plate. A work piece may be mounted on a mandrel, or circular work clamped in a three- or four-jaw chuck. For irregular shaped work pieces it is usual to use a four jaw (independent moving jaws) chuck. These holding devices mount directly to the Lathe head stock spindle.
LOCATION
Machine Shop, Building 1A, Undercroft. Opposite to Material Testing Lab.
CONTACT INFO
Abdul Shukoor. Email:
Radial Drilling Machine
DESCRIPTION
Excel Radial drilling machine is used to make holes up to 40 mm on materials using Drill bits. Drill bits are mounted to machine by holders. Different grades of drill bits are used according to the hardness of the material to be drilled. Machine spindle rotates in various speeds as selected by the operator. This machine is also used for operation like counter sunking, Thread Tapping, Reaming and crimping also. The work piece is held in a two jaw parallel vise and the vise is clamped tightly in to the table. Operations can be done in this machine are center drilling, Drilling, Reaming and Tapping. Wide range of speed range can be selected in this machine. For harder material slow spindle speed is to be selected before drilling. Speed selection of spindle can be varied by selecting appropriate gears as noted in spindle head. Minimum drill bit can be hold in machine drill chuck is 1 mm to 30 mm.For lesser diameter holes spindle speed can be keep in high. Small Drill bit can be held in Spindle by Drill chuck and Big drill bit with taper shank can be help directly to machine by using sleeves.
LOCATION
Machine Shop, Building 1A, Undercroft. Opposite to Material Testing Lab.
CONTACT INFO
Abdul Shukoor. Email:
CNC Lathe Machine
DESCRIPTION
A CNC (Computer Numerical Control) lathe is a machine tool in which the work is held and rotated, while being shaped by a cutting tool that is fed against the work. Material removal shall be done by rotating job against the tool. Axis movement of the cutting tool is controlled by Computer in CNC Lathe. Operations that shall be performed in lathe are Turning, Boring, Drilling, Thread cutting, Grooving, Reaming, Tapping, Face grooving, Trepanning and Parting. Computer numerical controlled (CNC) lathes are rapidly replacing the older production lathes (multispindle, etc.) due to their ease of setting, operation, repeatability and accuracy. They are designed to use modern carbide tooling and fully use modern processes. The part may be designed and the tool paths programmed by the CAD/CAM process or manually by the programmer, and the resulting file uploaded to the machine, and once set and trailed the machine will continue to turn out parts under the occasional supervision of an operator. The machine is controlled electronically via a computer menu style interface, the program may be modified and displayed at the machine, along with a simulated view of the process. The setter/operator needs a high level of skill to perform the process, however the knowledge base is broader compared to the older production machines where intimate knowledge of each machine was considered essential. These machines are often set and operated by the same person, where the operator will supervise a small number of machines (cell).The design of a CNC lathe varies with different manufacturers, but they all have some common elements. The turret holds the tool holders and indexes them as needed, the spindle holds the work piece and there are slides that let the turret move in multiple axis simultaneously. The CNC control used in this machine in Siemens 802 D control.
LOCATION
Machine Shop, Building 1A, Undercroft. Opposite to Material Testing Lab.
CONTACT INFO
Abdul Shukoor. Email: