Technical Universityof Koszalin

Department of Mechanical Engineering

Co-ordinator: dr Jerzy Ratajski

Technical University of Koszalin Koszalin, Poland

mail to: jratajsk@tu.koszalin.plFax: +48(0-94)-34-26-753

Development of intelligent tools for processes of surface treatment in automotive, railway, ship building and aircraft industry.

hardening by cold work (burnishing),

thermochemical heat reatment: carburizing, carbonitriding, nitriding,

glow discharge nitriding,

techniques of PA PVD and PA CVD.

Processes of surface treatments

Samples of applicationof the surface treatment

to land transport

Automotive industry

Carburising and carbonitriding: Cams, camshafts, starter shafts, pins, articulated joints, gears, eccentric, chain wheels, king-pins, ratchet mechanism, spline shafts, bearings, bearing bushs, valve spindles.

Nitriding: Crancshafts of Diesel engine, serrated shafts, elements of car steering system, elements of injectors to Diesel engine, valve arms, timing gears, ring gears of back axle (truck), adjusting plates, gears, cylinders liners, spindles, worms, cams, shafts, pistons pin, starter couplings, transmission coupling, gaskets, bearings, elements of speed indicators, axles, pistons, elements of window-opening mechanism, differential housing, rocker arms, clutch hubs, exhaust valves, batch of hydraulic cylinders, elements of windscreen wipers.

Glow discharge nitriding: werms, feed cylinders, guide screws of transmission, transmission gears, crancshafts, crancshafts of Wankel rotary piston engines, crancshafts of Leyland rotary piston engines, valves, shift forks, clamping rings, clamping pads, cylinders liner of Diesel engine.

PA PVD PA CVD techniques: engines and transmision – cams surface, tappet foot, gears transmission, ball bearings, roller bearings.

Surface cold working (burnishing): crancshafts, lever of steering rods, steerings knuckle arms, springs, elements of air cushions, gears transmision, worm gears, axles, shafts.

Railway industry

Carburising and carbonitriding: wagon’s wheels, systems of gear transmission.

Nitriding: hydraulic buffers, brake pins, guide valves, disk valves, piston rings, timing gears, piston pins.

Surface cold working (burnishing): craneshafts ??surface.

Air transport

Carburising and carbonitriding: assembly elements of aircraft engines, connecting links.

Nitriding: parts of engines and pumps, such as: cylinders liner, crancshafts, shafts, timing gear cams, mandrels, pistons rings, gudgeon pins.

Surface cold working (burnishing): engines parts e.g.: gears, transmission gears, shafts, exhaust stacks, landing gears, propellers.

PA PVD PA CVD techniques: above 75% of aircraft engine parts is covered by PA PVD and PA CVD techniques.

Sea transport

Carburising and carbonitriding: shafts of large ships engines and outboard motors, connectors.

Surface cold working (burnishing): large gears transmission, crancshafts, power screws.

proper selection of treatment processes should lead to synergic effects in terms of final properties of the product,

nowadays parameters of these processes are not optimized,

duplex or multiplex processes implemented by industry are very often a result of successive trial and error tests

NEEDS:

Development of intelligent tools – data bases and expert systems supporting design and control of surface treatment processes.

Modern process of surface treatment is a complex combination

of individual/complementary techniques

design of unconventional combinations of conventional treatment processes

an optimal selection of algorithms describing changes of single process parameters

Burnishing

Thermochemicaltreatment

or

glow discharge nitriding

PA PVDPA CVD

These tools should enable:

It in frames of project was planned:

creation of experimental model systems of processes of surface treatment

elaboration of intelligent tools – data base and expert systems for processes of surface treatment

searching for optimal as regards multi-functionality, multi-component coatings obtained by means of PVD and CVD methods, among other nano-structured diamond, diamond like and carbide derived carbon films

development of intelligent control systems

Innovation ActivitiesR&D Experimental Verification

WP0Management & Dissemination

Leader WP: TUK

WP1

System Creation of Experimental

Data Base

WP5

Experimental Verification

Expert Systems and Models of

Control Systems

WP4

Control Systems

WP3

Expert Systems

WP2

Modelling of Properties and

Processing

Research directions

Thermochemical heat treatment of steel: nitriding, carburizing, carbonitriding

studies of nitriding process kinetics,

development of mathematical models,

development of sensors for in-situ process monitoring and control,

design of advanced control systems.