KL-114 MACHINE
for the degassing, pouring and vibration compaction
of the granules in the capsules with subsequent hermetic sealing
by means electron beam welding

Is intended for the fabrication of blanks for aircraft turbine engine high-temperature Ni-based component parts by a method of metallurgy of granules.

• Heating and degassing of a capsule to complete removal of adsorbed moisture and gases from its internal and external surfaces.
• Degassing of the filler in a flow.
• Filling in a capsule with the granules.
• Vibration compaction of the granules in a capsule.
• EBW hermetic sealing of a capsule.
• CNC + PLC of all machine systems.
• Monitoring of the filling and welding processes by RASTR system on the basis of the secondary electron emission.

  MACHINE DESIGN

The chamber is a rectangular double-wall welded structure of stainless steel. The partitions forming the cooling system in inter-wall space are placed between internal and external walls of the chamber. The door hanger is mounted on the front flange. The rear wall at which the heater is mounted and the door are cooled by water.

The upper wall of the chamber is equipped with the flange on which the following units are mounted: the electron gun with the turbo-molecular pump, the manipulator of filling, the manipulator of setting a plug, as well as the porthole for visual observation of the production process. The cathode агеа is isolated bу the column vacuum valve to keep the gun under vacuum when the work chamber is vented.

The heater is intended to heat the workpiece before and during the process of its filling with granules. Before starting and during the process of filling-in the capsule with granules, the heater holds uniform (+/- 10 ^oC) temperature distribution along the workpiece external cylindrical surface. The three-sections heater is designed as a split lengthwise cylinder, supplied with insulating units along the upper and the lower tiers to tighten the filament tapes on them.

The vibrodrive consists of two parts, first - located in the vacuum space, and second - located outside of the chamber. The flange, to which the diaphragm of special strengthened rubber is fixed, is mounted on the lower wall of the chamber. It serves to seal hermetically the vibrodrive part placed inside the vacuum chamber.

The charging device is intended to place/unload the tool set together with fixed capsule to/from the vibrodrive landing plate located inside the vacuum chamber.

The automatic control system is a programmable-hardware controlled complex and consists of:

• the upper level the IBM-compatible processor, which serves as an operator interface;
• the lower level subsystem, realized on basis of programmable-logical controller ;
• the matching device with control object (MDO);
• the operational units (pumps, valves and the heating system), controlled by the MDO boards;
• the visualization system of welding area and matching control.

The software realizes algorithms of the following functional subsystems control:

• the vacuum system;
• the high-voltage power supply;
• the control and visualization system "RASTR";
• the workpiece heating system;
• the temperature control system.

  TECHNICAL DAТА