Recent developments in wood machining processes: Novel cutting techniques

1975 ◽  
Vol 9 (2) ◽  
pp. 113-128 ◽  
Author(s):  
Richard Szymani ◽  
Fred E. Dickinson
Keyword(s):  
Machining Processes ◽  
Recent Developments ◽  
Wood Machining

Productivity in wood machining processes - a question of simple economics ?

1999 ◽  
Vol 57 (1) ◽  
pp. 51-56 ◽  
Author(s):  
J. Ratnasingam ◽  
T. P. Ma ◽  
M. C. Perkins
Keyword(s):  
Machining Processes ◽  
Wood Machining

Cutting forces in wood machining – Basics and applications in industrial processes. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture

Holzforschung ◽  
2009 ◽  
Vol 63 (2) ◽  
Author(s):  
Rémy Marchal ◽  
Frédéric Mothe ◽  
Louis-Etienne Denaud ◽  
Bernard Thibaut ◽  
Laurent Bleron
Keyword(s):  
Cutting Forces ◽  
Tool Material ◽  
Online Control ◽  
Industrial Applications ◽  
Machining Processes ◽  
Interactive Approach ◽  
Cutting Geometry ◽  
High Quality Information ◽  
Wood Cutting ◽  
Wood Machining

Abstract The data available in the literature concerning wood cutting forces permits to build models or to simulate the main wood machining processes (milling, sawing, peeling, etc.). This approach contributes to a better understanding of formation of wood surfaces and chips and the data may be helpful to optimise cutting geometry, reduce tool wear, improve tool material, and to size tool-machines. The models may also be useful for industrial application in two ways: (1) providing data to optimise the settings for a given operation (batch approach), and (2) building predictive models that could be the basis of an online control system for the machining processes (interactive approach). A prerequisite for this is that numerous machining tests on different wood materials are performed based on experiences with different kind of tools and experimental devices. With a focus on potential industrial applications, the emphasis of this review was on the wood peeling process, which is a very demanding special case of wood cutting. Although not so many industrial machines are equipped with expensive force sensors, there is a lot of high quality information available about cutting forces which may be useful to improve the scientific or technological knowledge in wood machining. Alternative parameters, such as vibration or sound measurements, appear to be promising substitutes in the praxis, particularly to feed online control systems of any wood cutting process.

Cell wall features with regard to mechanical performance. A review COST Action E35 2004–2008: Wood machining – micromechanics and fracture

Holzforschung ◽  
2009 ◽  
Vol 63 (2) ◽  
Author(s):  
Lennart Salmén ◽  
Ingo Burgert
Keyword(s):  
Cell Wall ◽  
Mechanical Performance ◽  
Wood Cell Wall ◽  
Wood Products ◽  
Wall Structure ◽  
Detailed Knowledge ◽  
Structure Property ◽  
Property Relations ◽  
Recent Developments ◽  
Wood Machining

Abstract The mechanical performance of wood and wood products is highly dependent on the structural arrangement and properties of the polymers within the fibre cell wall. To improve utilisation and manufacture of wood materials, there is an increasing need for a more detailed knowledge regarding structure/property relations at the micro- or nanostructural level. In this article, recent developments regarding our understanding of the wood cell wall structure and its mechanical performance are summarised. The new results are interpreted in relation to property performances of wood fibres and wood tissues. Suggestions are made for future requirements for research in this field.

scholarly journals Analysis of the Tribological Evolution of Nitride-Based Coatings

2021 ◽  
Author(s):  
Christian Ortiz Ortiz ◽  
Erick Hernandez-Rengifo ◽  
Julio Cesar Caicedo
Keyword(s):  
Critical Review ◽  
Protective Coatings ◽  
Cutting Tools ◽  
Hard Coatings ◽  
Machining Processes ◽  
Surface Control ◽  
Metalworking Industry ◽  
Recent Developments

This chapter describes the fundamental and technological role of nitride-based hard coatings as protective coatings in some applications within the metalworking industry. For this, this chapter will present a critical review of previous research and recent developments on nitride-based coatings in different systems such as (multilayers, quaternaries, among others), where it will be possible to demonstrate their main properties and advantages that they can grant when they are implemented on conventional steels, such as greater hardness, surface control, electrochemical resistance, resistance against wear, among others. These results will determine that this type of coatings are suitable candidates to be implemented as protective coatings on cutting tools, which suffer from high wear in machining processes in the metalworking industry.

Current Status of Peel Grinding Technology

2010 ◽  
Author(s):  
Michael P. Hitchiner
Keyword(s):  
Hard Turning ◽  
Current Status ◽  
Rough Machining ◽  
Machining Processes ◽  
Batch Production ◽  
Plunge Grinding ◽  
Finish Turning ◽  
Soft State ◽  
Recent Developments ◽  
High Work

Paper reviews the development of peel grinding from what was once a highly specialized process for finishing small hardened ferrous materials involving CBN grain in an ultra-tough metal bonded wheel requiring ultra-high work and wheel speeds in oil coolant for small batch production to replace plunge grinding. Recent developments are now questioning the need for the bond resilience with its attending difficulties of dressing, oil coolant, hard workpieces, or even high wheel or work speeds. The process has progressed to now challenge not only plunge grinding but other machining processes including rough machining of billets, hard turning and finish turning of steels in the soft state. The use of peel grinding is also considered in combination with other machining processes.

scholarly journals Recent Developments in Abrasive Hybrid Manufacturing Processes

2017 ◽  
Vol 8 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Adam Ruszaj ◽  
Sebastian Skoczypiec ◽  
Dominik Wyszyński
Keyword(s):  
Manufacturing Processes ◽  
Hybrid Manufacturing ◽  
Electrochemical Dissolution ◽  
Ultrasonic Vibrations ◽  
Abrasive Machining ◽  
Electrical Discharges ◽  
Machining Processes ◽  
Practical Applications ◽  
Dynamic Development ◽  
Recent Developments

AbstractRecent dynamic development of abrasive hybrid manufacturing processes results from application of a new difficult for machining materials and improvement of technological indicators of manufacturing processes already applied in practice. This tendency also occurs in abrasive machining processes which are often supported by ultrasonic vibrations, electrochemical dissolution or by electrical discharges. In the paper we present the review of new results of investigations and new practical applications of Abrasive Electrodischarge (AEDM) and Electrochemical (AECM) Machining.

High Precision Manufacturing and the British Economy

1986 ◽  
Vol 200 (3) ◽  
pp. 147-165 ◽  
Author(s):  
P A McKeown
Keyword(s):  
High Precision ◽  
Three Dimensional ◽  
Advanced Technology ◽  
Machining Processes ◽  
Precision Engineering ◽  
Technology Products ◽  
Wide Range ◽  
Recent Developments ◽  
Manufacturing Engineering ◽  
The Uk

In Industry Year, this James Clayton Lecture appropriately addresses the field of manufacturing engineering and aims to contribute to a wider understanding of how our economy and standard of living critically depend on those who design, manufacture and sell the products of high quality necessary to compete in world markets. The two main thrusts worldwide, in manufacturing engineering are: Automation—in particular, computer integrated, flexible manufacture to reduce overall cost and lead time and in which CADCAM, FMS and CIM are crucially important technologies Manufacture with higher precision—on which a wide range of advanced technology products are totally dependent—and in which precision engineering, micro-engineering and nanotechnology are generally less well understood and practised than by our main international competitors The paper traces recent developments in precision engineering in general and several new and non-conventional high precision ‘machining’ processes in particular, including those by which ‘atomic-bit machining’ is possible. Principles and modern techniques for controlling the accuracy of tool to workpiece in two- and three-dimensional work-zones of high precision production machines are reviewed and illustrated. Today's precision engineering, which can be defined as work at the forefront of design and manufacturing technology, can also be expected to become the general engineering of tomorrow. Its importance to the future of the UK economy cannot be overstated.

Recent Developments in Wire Electrical Discharge Machining

2019 ◽  
pp. 125-152
Author(s):  
Nadeem Faisal ◽  
Sumit Bhowmik ◽  
Kaushik Kumar
Keyword(s):  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Electrical Discharge Machine ◽  
High Strength ◽  
Optimization Methods ◽  
Machining Process ◽  
Machining Processes ◽  
Accuracy And Precision ◽  
Recent Developments ◽  
Conventional Machining

The tremendous growth of manufacturing industries and desired need of accuracy and precision has put a great importance on non-traditional machining processes. Metal and non-metals having properties like high strength, toughness, and hardness is generally machined by non-conventional machining methods. One of earliest non-traditional machining that is still in use and being effectively utilized in industries is wire electrical discharge machine. This machining technique gives a tough line of competition to conventional machining process like milling, grinding, broaching, etc. Cutting intricate and delicate shapes with accuracy and precision gives this machining technique an edge over other conventional machining and non-conventional machining processes. This chapter provides an insight to various research and prominent work done in field of WEDM by various scientists, researchers, and academicians. The chapter also emphasizes various advantages and disadvantages of different modelling and optimization methods used. The chapter concludes with some recommendations about trends for future WEDM researchers.

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