Laser drilling offers numerous benefits

There are a variety of benefits offers by laser drilling over conventional drilling, and as the technology improves more benefits will be realized.

At present, the major advantages of laser drilling include no physical contact between tool and workpiece, eliminating problems such as material deformation, tool breakage and wear, and also overheating. Laser drilled holes can be located with extremely high accuracy because lasers can be aimed optically. As the material is melted and vaporized lasers don’t produce chips and leave burrs unlike conventional drilling processes. Lasers can produce holes can be drilled in difficult to reach areas. Such head materials as diamond, hastalloy, tungsten and titanium can easily be laser drilled.

Drilling Machines Model 2m57

These machine tools are capable of drilling, boring, counterboring, countersinking, reaming and thread-cutting, facing and also of other similar operations when machining various housing components and the like.

The machine can be utilized to the best advantage under short- and medium-run production conditions.

The drill head accommodates a speed and feed gearbox, spindle, feed and control mechanism (a manual control for the 2Л53У machine and a hydropreselective control for the other machines) and also a push-button station. On the 2Л53У machine the push-button station is located on the arm barrel. Mounted on the drill head is a main drive electric motor. The spindle braking system quickly brings the spindle to a standstill.

The electrical equipment is accommodated in the drill head (in the barrel recess on the 2Л53У machine tool). The machine tools are protected against spontaneous starting of the motor after a failure in the electric power supply. There is a lamp illuminating the drilling zone. Provision is made in the drill head for a mechanism which automatically disengages the feed drive when the required depth of drilling has been reached.

The 2Л53У machine has an arm which does not move vertically and a table mounted on the column and capable of rapid vertical travel. The table turns both about the horizontal axis and about the column axis. The table is swung aside when a workpiece is being mounted on the base plate.

The other machine tools are furnished with an arm vertical travel mechanism. The 2M58-1 machine above that has a mechanism stirring the column when it is to be turned. The 2M57 and 2M58-1 machine tools are provided with a mechanism for rapid travel and clamping of the drill head on the machine arm.

The machines are furnished with an idling limiter which allows saving of electric power.

The cutting fluid is fed by an electrically driven pump having capacity of 22 1/min.

Drilling Machines Model 2p53

Portable radial drilling machines are to be installed near a workpiece or inside it.

The design of these machines allows the spindle to be set at any angle.

The 2E52 and 2K52 small-size portable machines are capable of machining holes within the radius of maximum spindle overhang. To machine holes at a greater distance, the machines have to be repositioned. Because of the presence of a T-slot plate the machine tools may be used as stationary machines.

The 2Ш55 and 2Ш57 larger machine tools have a saddle sliding over bed ways and thus eliminate the need of their repositioning during machining even large components like housings.

To machine superlarge or superlong components use is made of radial drilling machines moved over a long bed (2М57Д) or mounted on a truck moving on rails (2P53). With those machines the required machining operations are accomplished with the spindle in a vertical position.

To save electric power the machines are provided with an idling limiter.

The machine tools have been protected against spontaneous starting of the electric motor after a failure in the electric power supply.

A braking system quickly brings the spindle to a standstill when required.

The drill heads of these machines have a mechanism which automatically disengages the feed when the predetermined depth of cut has been reached.

The 2E52 and 2K52 portable machines consist of a plate with hinged shoes to add steadiness to the machine, stationary column, a barrel with a speed gearbox, mounted and moving on the column main drive motor and an arm turning about the horizontal axis, a drill head with a feed gearbox which turns in the plane of its mounting flange.

The spindle speed change over and the vertical traverse of the arm are controlled by a single lever located on the front of the barrel. The operational controls, such as the control of drill head traverse over the arm, fine feed handwheel, feed selector lever and the feed control lever are located on the drill head.

The electrical equipment is arranged in the barrel cavity at the rear of the machine. A push-button station is found on the front.

The 2Ш55 and 2Ш57 portable machine tools consist of a bed with flat ways and a saddle which carries a swivel column with a barrel and a sliding arm, a drill head with speed and feed gearboxes and a main drive motor. The drill head can be turned in the plane of its mounting flange. It can be tilted at different angles.

The spindle speeds and feeds are controlled with the aid of hydraulically operated preselective control unit.

The electrical equipment is arranged in the barrel cavity.

There is a pendant push-button station.

The movable components of the machine, such as the saddle, column, arm and the drill head can be swivelled and traversed either manually or by power both at a low and high positioning speeds. The movable components are clamped after positioning by means of hydraulic clamping devices.

The 2M57Д and 2P53 machine tools differ from the universal radial drilling machines in that their arm is longer and their column is mounted on a saddle or a truck which can be slowly or rapidly moved.