Manufacturing parts for aircraft turbine engines requires application of top quality materials (including titanium, magnesium, nickel alloys and heat and high temperature resistant inconel alloys) and machining (plasma spraying). Some gears are loaded with thousands of horse power, while the rotational speed of some gears manufactured by PWK reaches over 20,000 rpm.

The machines used in PWK process are made the worldwide elite companies. It ensures the highest excellence, quality and repeatability of machining as well as the world-class service.

1. Turning – including rotary lathes
2. Milling on 5-axis machines
3. Drilling on coordinate drilling machines
4. Milling gears
5. Milling spiral bevel gears
6. Broaching
7. Shaping involute gears
8. Drilling deep holes up to 2000 mm (gun drill)
9. Laser cutting
10. Bending tubes
11. Shot peening splines
12. Grinding shafts, holes and surfaces
13. Grinding on coordinate grinding machines
14. Grinding gears and splines
15. Profile grinding
16. Grinding spiral bevel gears
17. Honing gears after grinding
18. Extrude honing
19. Carburizing
20. Copper plating
21. Hardening
22. Heat treatment in vacuum furnaces
23. Sub-zero treatment in low-temperature chambers
24. Plasma spraying
25. Brazing with silver and gold alloys in vacuum furnaces
26. Induction brazing
27. Electron beam welding
28. Painting
29. Inspecting on coordinate measuring machines
30. Inspecting gears and splines on measuring machines
31. Magnetic Particle Inspection
32. Fluorescent Penetrant Inspection
33. RTG inspection
34. Heat Treatment laboratory inspection
35. Ultrasonic inspection
36. Induction hardening

The Company also manufactures a lot of experimental parts (mainly gears) used for new engines launched by Pratt & Whitney Canada and for R&D tests carried out by PWC Engineering.

PWK collaborates with 14 engineering schools and R&D institutes in Poland. The goal comprises further development of the Centre of Excellence for aircraft and helicopter gears in Kalisz.

At present we work to:

1. develop the process of gear induction hardening,
2. optimize laser cutting,
3. optimize hardening as part of the traditional heat treatment,
4. develop HSM (high speed machining), i.e. high-efficiency machining – mainly milling and turning,
5. implement green environment-friendly processes, i.e. eliminate redundant plating operations,
6. reduce power consumption,
7. reduce our process impact upon greenhouse gas emission.