Dynamic Drawing Treatment of the Three-Bridge High-Pressure Waterjet Cutting Machine

The multi-bridge high-pressure waterjet cutting machine greatly improved cutting efficiency, and also made one-off processing of large workpiece possible. In order to further improve the efficiency of this system, this paper have put forward a drawing treatment—using ObjectARX development kit to do secondary development of AutoCAD drawing. Through customized menu commands of AutoCAD to call ObjectARX application, thus achieve automatic drawing segmentation, namely assigned equivalent workload as possible for each cutting head to increase the simultaneous work time of cutting heads and improve efficiency. At last, experiments were taken to verify the feasible of this method.

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The Development of a Physico-Mathematical Model for the Functioning of an Underwater Waterjet Cutting Machine

Moscow University Physics Bulletin ◽

10.3103/s0027134920020058 ◽

2020 ◽

Vol 75 (2) ◽

pp. 167-174

Author(s):

A. A. Ilukhina ◽

V. I. Kolpakov ◽

V. V. Veltishchev ◽

A. L. Galinovsky ◽

A. V. Khakhalin

Keyword(s):

Mathematical Model ◽

Waterjet Cutting ◽

Cutting Machine

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The effect of cutting head vibrations on the surfaces generated by waterjet cutting

International Journal of Machine Tools and Manufacture ◽

10.1016/j.ijmachtools.2004.07.010 ◽

2005 ◽

Vol 45 (3) ◽

pp. 355-363 ◽

Cited By ~ 11

Author(s):

M. Monno ◽

C. Ravasio

Keyword(s):

Waterjet Cutting ◽

Cutting Head

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Cutting head design lowers abrasive waterjet cutting costs

Aircraft Engineering and Aerospace Technology ◽

10.1108/00022669710164484 ◽

1997 ◽

Vol 69 (2) ◽

pp. 147-150 ◽

Cited By ~ 5

Author(s):

Paul Etchells

Keyword(s):

Abrasive Waterjet ◽

Waterjet Cutting ◽

Cutting Head ◽

Abrasive Waterjet Cutting

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Multisensor information-based adaptive control method for cutting head speed of roadheader

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406220952494 ◽

2020 ◽

pp. 095440622095249

Author(s):

Pengjiang Wang ◽

Yang Shen ◽

Rui Li ◽

Kai Zong ◽

Shichen Fu ◽

...

Keyword(s):

Adaptive Control ◽

Control Method ◽

Back Propagation ◽

Back Propagation Neural Network ◽

Fuzzy Logic Controllers ◽

Control Effect ◽

Cutting Efficiency ◽

Cutting Head ◽

Pi Controllers ◽

Particle Swarm Optimisation Algorithm

An adaptive control method to improve the cutting head speed of roadheaders using multisensor information is proposed, so as to solve the problems of low cutting efficiency and low intelligence of roadheaders during underground tunnelling. The operation of a roadheader is analysed, and a control strategy for its cutting head speed is proposed. In addition, the cutting head speed is categorised into five gears according to the multisensor information of different cutting states. The controller for speed estimation is designed using a back propagation neural network optimised using an improved particle swarm optimisation algorithm. A control system is established in MATLAB to analyse the effectiveness of the method. The simulation results show that an IPSO-BP controller has the best control effect and can attain the target speed. The response time was lower than those of fuzzy logic controllers and traditional PI controllers by 46% and 68%, respectively, and the overshoot decreased by 4.69% and 12.19%, respectively. Furthermore, experimental research verified the effectiveness of this method. This method can adaptively adjust the cutting head speed of a roadheader using multisensor information and is important (both theoretical and practically) for extending the service life of roadheaders and improving tunnelling efficiency.

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Secondary Development of Automatic Drawing Software of Spindle of Numerical Control Lathe

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.109.571 ◽

2011 ◽

Vol 109 ◽

pp. 571-574

Author(s):

Shu Lan Zhang ◽

Nan Qiao Zhang

Keyword(s):

Computer Technology ◽

Structural Design ◽

Search Algorithm ◽

Numerical Control ◽

Secondary Development ◽

Automatic Design ◽

Continuous Curve ◽

Related Data ◽

Automatic Drawing ◽

Common Components

Looking up data mainly depends on the designer. Automation of looking up related data of charts, curve resource is a key to automatic design of common components, and is neccessory to be solved for strength and structural design automation of common components. A continuous curve on the logarithmic coordinates taken automatically search algorithm and discrete forms of data management and automated check to take the basic data structure to solve all the data graphs and charts automatically check the computer taken. With computer technology, in mechanical product design, various standards curves and tables can be processed.

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Research on the Concept of Controlled Speed Based on Cutting Band Saw

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.584.45 ◽

2013 ◽

Vol 584 ◽

pp. 45-49

Author(s):

Ying Chun Xue

Keyword(s):

Removal Rate ◽

Cutting Speed ◽

Machine Design ◽

Feed Speed ◽

Cutting Efficiency ◽

The Past ◽

Equation Solving ◽

Cutting Machine ◽

Band Saw ◽

Core Problem

Speed control is the core problem of cutting machine design, the past has been the experience of adjusting the cutting speed, the lack of theoretical basis, randomness. In view of this, according to the basic requirements of cutting efficiency maximization, deduces the removal rate and feed speed, time equation, solving the cutting efficiency problem exists in the design of machine, and established when the removal rate is constant, relation curves of shear rate and time. Use of the method of cutting machine design, can improve the accuracy and scientific design, has higher application value.

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Research on Automatic Segmentation Methods of Multi-Beam Waterjet Cutting Process Drawings

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.314-316.1571 ◽

2011 ◽

Vol 314-316 ◽

pp. 1571-1575

Author(s):

Hui Kang Yang ◽

Dean Zhao ◽

Jin Liang Guo ◽

Jun Zhang ◽

Bo Chen

Keyword(s):

Automatic Segmentation ◽

Cutting Process ◽

Secondary Development ◽

Manual Segmentation ◽

Work Efficiency ◽

Waterjet Cutting ◽

Development Tool ◽

Segmentation Methods ◽

Low Efficiency

Currently, some manual segmentation problems exist in multi-beam waterjet cutting process drawings, such as low efficiency, incomplete segmentation and so on. In order to solve the problems, this paper designs a set of criteria for multi-beam cutting process and proposes the method of partition-classification trim, then uses the secondary development tool which is embedded in AutoCAD to program three user-defined commands, and these commands can partition the drawing by region, classify and trim the entities in the cutting process drawing. Through inputting the three simple commands on the command lines, it can realize automatic segmentation of cutting process drawings. Finally, the feasibility of this method is proved by a segmentation experiment. It can effectively solve the problems which exist in manual segmentation and greatly improve work efficiency.

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