Research on digitized configuration and automated management of cutting tools for CNC machine

2006 ◽  
Author(s):  
Li Guoxi ◽  
Wu Baozhong ◽  
Gong Jingzhong ◽  
Zhong Nanxing ◽  
Li Tingting
Keyword(s):  
Cutting Tools ◽  
Cnc Machine ◽  
Automated Management

A unified manufacturing resource model for representation of computerized numerically controlled machine tools

2009 ◽  
Vol 223 (5) ◽  
pp. 463-483 ◽  
Author(s):  
P Vichare ◽  
A Nassehi ◽  
S Newman
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Manufacturing System ◽  
Cutting Tools ◽  
Cnc Machining ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Resource Model ◽  
Machining System ◽  
Manufacturing Resource

The capability of any manufacturing system primarily depends on its available machine tools. Thus machine tool representation is a vital part of modelling any manufacturing system. With the rapid advances in computerized numerically controlled (CNC) machines, machine tool representation has become a more challenging task than ever before. Today's CNC machine tools are more than just automated manufacturing machines, as they can be considered multi-purpose, multi-tasking, and hybrid machining centres. This paper presents a versatile methodology for representing such state-of-the-art CNC machining system resources. A machine tool model is a conceptual representation of the real machine tool and provides a logical framework for representing its functionality in the manufacturing system. There are several commercial modelling tools available in the market for modelling machine tools. However, there is no common methodology among them to represent the wide diversity of machine tool configurations. These modelling tools are either machine vendor specific or limited in their scope to represent machine tool capability. In addition, the current information models of STEP-NC, namely ISO 14649, can only describe machining operations, technologies, cutting tools, and product geometries. However, they do not support the representation of machine tools. The proposed unified manufacturing resource model (UMRM) has a data model which can fill this gap by providing machine specific data in the form of an EXPRESS schema and act as a complementary part to the STEP-NC standard to represent various machine tools in a standardized form. UMRM is flexible enough to represent any type of CNC machining centre. This machine tool representation can be utilized to represent machine tool functionality and consequential process capabilities for allocating resources for process planning and machining.

scholarly journals IMPROVE PRODUCTIVITY THROUGH DIGITAL MANUFACTURING

2021 ◽  
Vol 24 (2) ◽  
pp. 35-37
Author(s):  
Adrian But ◽  
◽  
Radu Canarache ◽  
Lucian Gal ◽  
◽  
...  
Keyword(s):  
Machine Tools ◽  
Cutting Tools ◽  
Cnc Machine Tools ◽  
Digital Manufacturing ◽  
Cnc Machine ◽  
High Productivity ◽  
Long Time ◽  
Additional Process ◽  
Cnc Simulation ◽  
Production Company

In the future the digitalization and "Industry 4.0” will be in every step of the product lifecycle from design to the manufacture, service, and maintenance. Through digitalization, the companies will be able to operate and program the complex CNC machine tools that will be ready to respond more flexibly to the market demands and at the same time to boost their productivity. Work preparation and production can be breaking down further into additional process steps, ranging from tendering to quality assurance. The demand for digitalization solution can be illustrated thru the following targets and questions what every production company must define and establish: 1. How long time will be the part on the machine to be manufacturi; 2. Is that CNC machine tools (what is able and have the technical characteristics) available; 3. Are necessary new cutting tools for this new job; 4.The CNC operator is familiar with the CNC control equipment; 5. Does the workpiece tolerance correspond with the customer specifications. Is not so easy to link up all this requests and to find the best solutions in time and to have high productivity. Digital manufacturing will give us the preliminary units costs and delivery deadline that must be determined to be able to tender for a job correctly. Today, the amount of time a workpiece will require for machining can be calculated quickly reliably and very important, without trial runs, using CNC simulation solutions. This recommendations from our paper can be an answer at the production companies and the advantage of this implementations is that can be made step by step. The solution of this implementation should be in concordance with the company’s requirements and resources.

Automatic Toolpath Generation for Multi-Axis Surface Machining in a Hybrid Manufacturing System

2003 ◽  
Author(s):  
Jianzhong Ruan ◽  
F. W. Liou
Keyword(s):  
Manufacturing System ◽  
Cutting Tools ◽  
Deposition Process ◽  
Machining Process ◽  
Hybrid Manufacturing ◽  
Cnc Machine ◽  
Surface Machining ◽  
Visibility Map ◽  
Cutter Path ◽  
Cutter Path Generation

In a multi-axis hybrid manufacturing system, it is necessary to utilize a machining process to improve surface accuracy and guarantee overall geometry after the deposition process. Due to the complexity of the multi-axis system, it is necessary to find proper orientations of cutting tools for the CNC machine to finish surface machining. This paper presents an algorithm to find collision-free surface machining toolpath for a given workpiece. The concept of the 2-D visibility map and its properties are discussed. The algorithm to compute the 2-D visibility map is presented. With the help of the 2-D visibility map, an optimal a collision free tool approaching direction can be easily decided. Also the type of the surface machining toolpath for different types of surfaces is decided based on topological information and the machining toolpath (CL data for milling tool). The developed planning scheme has been tested via machine simulations and has shown that it can be effectively applied to cutter-path generation for multi-axis surface machining.

Adjustment of Mill CNC Parameters to Optimize Cutting Operation and Surface Quality on Acrylic Sheet Machining

2013 ◽  
Vol 377 ◽  
pp. 117-122 ◽  
Author(s):  
Kuswara Setiawan ◽  
Sihar Tigor Benjamin Tambunan ◽  
Pram Eliyah Yuliana
Keyword(s):  
Surface Quality ◽  
Feed Rate ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Numerical Control ◽  
Cnc Machine ◽  
Excessive Heat ◽  
Spindle Rotation ◽  
Acrylic Sheet ◽  
Cutting Operation

Acrylic is easy to machine. In addition to the advantages derived from the use of mill Computer Numerical Control (CNC) machine on acrylic sheet, there are at least two serious problems that need attention especially in cutting a small part with many vertices. These problems are the presence of excessive heat due to friction between the cutting tool with acrylic sheet on high RPM of spindle rotation, and soft acrylic flakes trapped in crevices of the cutting tools’flute.Generally, the cutting process using a mill CNC machine often is a practice of trial and error. At least nine basic technical parameters need to be optimized. The effectiveness of the parameter values are determined by observing and measuring the actual cutting time using mill CNC machine at given parameter settings, surface texture quality, the level of clarity of the cuts, characteristics of chip formation, and edge roughness.The experimental results showed that the adhesion of acrylic sheet and cutting tools is relatively low. However, the heat of cutting tool due to high spindle rotation, low feed rate, and relatively low melting point of acrylic, tend to form very small, soft, and hot flakes. The acrylic chips have great potential entering the crevices of cutting tools’ flutes, and reducing the cutting power significantly. In other condition, the cutting tool could even be broken if feed rate is too high. Some technical values of these parameters are recommended to obtain optimal CNC based cutting operation and surface quality on acrylic sheet.

Research on Online Collision Detection Algorithm of CNC Machine Tools

2016 ◽  
Vol 693 ◽  
pp. 1780-1785
Author(s):  
Zhen Sang ◽  
Tai Yong Wang ◽  
Xiang Xiang Zou ◽  
He Nan Xu
Keyword(s):  
Collision Detection ◽  
Machine Tools ◽  
Detection Efficiency ◽  
Cutting Tools ◽  
Detection Algorithm ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Advantages And Disadvantages ◽  
Five Axis

Collision detection is the core of the numerical control system of intelligent manufacturing in the manufacturing process of rapid feeding, positioning and cutting. We need to avoid collision between the cutting tools, machine tools and workpiece. Based on the characteristic of five-axis CNC system, we analyze the advantages and disadvantages of Hierarchical Mesh Segmentation and Octree. At last, we use the collision detection algorithm of cuboid and separation axis to optimize the algorithm of traditional NC machine tool collision detection, which improve the detection efficiency and accuracy.

An Object-Oriented Modeling Approach for Production Scheduling on CNC-Machines in Flexible Manufacturing System to Maximize Cutting Tool Utilization

2019 ◽  
Vol 18 (02) ◽  
pp. 293-310
Author(s):  
Ari Setiawan ◽  
Rachmawati Wangsaputra ◽  
Yatna Yuwana Martawirya ◽  
Abdul Hakim Halim
Keyword(s):  
Production Scheduling ◽  
Flexible Manufacturing ◽  
Manufacturing System ◽  
Flexible Manufacturing System ◽  
Solution Method ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Object Oriented ◽  
Cnc Machine ◽  
Cnc Machines

This paper discusses production scheduling problems on CNC-machines having a set of cutting tools in a Flexible Manufacturing System (FMS) to maximize the cutting tools utilization. This objective has been selected because it is frequently found that cutting tools are under-utilized as they are used far below their respective lifetime limits. We will consider the situation where several identical CNC-machines are operated in an FMS; each of which is equipped with the same cutting tool configuration. The jobs to be scheduled are machining parts, and each of the parts requires one to two stages of processes, and each of the stages consists of several sequential operations, where a specific operation requires a certain type of cutting tool. Whenever a certain cutting tool is being used, the time consumption will be accumulated to calculate its remaining lifetime. The assignment of an operation to a particular CNC-machine will be based on the sufficiency of the cutting tool remaining lifetime to complete the operation. We formulate the problem in a mathematical model and then solve it using a solution method based on the object-oriented modeling approach, where the FMS elements are grouped as classes of the objects, i.e. the CNC-machine, the cutting-tool, the product (job) and the storage classes. Numerical examples show that the proposed solution method can effectively solve the scheduling problem.

Rapid Manufacturing of Shaped Die and Draw Punch Tools for Presses

2013 ◽  
Vol 554-557 ◽  
pp. 1814-1818 ◽  
Author(s):  
Markku Kananen ◽  
Mikko Hietala ◽  
Kari Mäntyjärvi
Keyword(s):  
Cutting Tools ◽  
Water Jet ◽  
Production Costs ◽  
Fine Tuning ◽  
Cnc Machine ◽  
Compatible Pair ◽  
Water Jet Cutting ◽  
Blank Sheet ◽  
Technology Group ◽  
Forming Tools

Traditionally forming tools for a press are machined with a CNC-machine. This is quite time consuming - calculating tool tracks, selecting cutting tools, cutting blanks, design fixation and finally machining - especially for a small batch of parts. One alternative method is to cut a die and a draw punch tools from a blank sheet and bunching the plates. Clamping plates together is fast and easy to implement by using for example studs and bars with a certain tolerance to ensure alignment. A laser, a water jet or a plasma cutter can be used for cutting plates. Especially the laser and the water jet cutting are precise methods giving a fine surface quality without a need for fine-tuning. The method saves material compared with machining because a die and a punch could be cut at the same time from a blank sheet as compatible pair as well as the needed amount of plates could be estimated depending of the length of a pressed product. University of Oulu, Oulu Southern institute, Future Manufacturing Technology -group has manufactured several forming tools within this technique and found it extremely suitable for experimenting different solutions and options fast. Furthermore, the method is likely to help especially SMEs in their R&D-phase by lowering production costs in a cost-efficiency way.

scholarly journals Wear Resistance Enhancement of Cutting Tools in CNC Machine

2019 ◽  
Vol 9 (2) ◽  
pp. 1264-1270
Keyword(s):  
Mechanical Properties ◽  
Metal Cutting ◽  
Elevated Temperatures ◽  
Cutting Tools ◽  
Basic Function ◽  
Cnc Machine ◽  
Efficient Manner ◽  
Tool Coatings ◽  
Metal Cutting Tool ◽  
The Right

Cutting Tools form the basis of the machining industry. The Machining industry relies on various processes such as cutting, welding, bending, rolling, turning, profiling, drilling, milling, finishing, which require an effective set of cutting tools. These machining activities need the right cutting tools so that the day to day operations can be performed in an extremely efficient manner while increasing the productivity of the industry. The basic function of a metal cutting tool is to get rid of the extra material from the workpiece and help in producing products with a better surface finish. The material used for the manufacturing of the cutting tools has a significant role to play in deciding the effectiveness and the longevity of the tool. Coated cutting tools were used in the industry for a long time. In recent times more than three fourth of all tools are coated with TiALN and TiN. The mechanical properties of these tools tend to change drastically under elevated temperatures and thus cause the failure of such tools. In this paper, our objective is to use Carbon Nano Tube nanoparticles as coatings for cutting tools. We aim to compare the mechanical properties of these coated tools and do a comparative analysis of tools coated with CNT nanoparticles versus the conventional multi-layered tool coatings

Mechatronics Approach for Desk-Top CNC Milling Machine Design

2008 ◽  
Vol 144 ◽  
pp. 175-180
Author(s):  
Riza Gürbüz
Keyword(s):  
Cutting Tools ◽  
Control Unit ◽  
Machine Design ◽  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Cnc Milling Machine ◽  
Feed Drives ◽  
Tool Monitoring ◽  
Operator Interface

The marriage of computer, electronic technology and traditional machining disciplines has given birth to revolutionary new disciplines, Mechatronics. Therefore Mechatronics requires mechanical, electronic and computer knowledge together. The main aim of this article is to present the mechatronics approach for desk-top CNC milling machine design. Construction of computer controlled (CNC) Machine differs greatly from that of conventional machine tools. This difference arises from the requirement of higher performance levels. Machine Structure, guide ways, feed drives, spindle and spindle bearings, measuring systems, machine control unit, software and operator interface, gauging and tool monitoring should be considered as mechatronics approach. Servo motors, motor drivers and motor control unit were used in this CNC milling machine to make it flexible and easy programming. Ball screws were used to X-Y –Z axes to eliminate backlash of the slides. Non-contact home and Limit switches were used to prevent possible damages against over travels. Necessary torque and power have been calculated to select the motors by taking care of the load, ball screws, motor inertia and required cutting tools and etc. and developed CNC milling machine has been tested several times for reliable machining of machine parts.

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