scholarly journals Research the quality of the caprolon turning with ceramic cutting tools

2017 ◽  
Vol 129 ◽  
pp. 01015 ◽  
Author(s):  
Oleg Erenkov ◽  
Alexander Ivakhnenko ◽  
Victor Protasev
Keyword(s):  
Cutting Tools

scholarly journals Features and Characteristics of Motorized and Non-Motorized Milling Spindles

2020 ◽  
Vol 9 (4) ◽  
pp. 1095-1100
Keyword(s):  
Machine Tools ◽  
Cutting Tools ◽  
Control Device ◽  
Common Type ◽  
Machining Process ◽  
Industrial Practice ◽  
Quality Of Products ◽  
Efficiency And Reliability ◽  
Reliability And Availability

The Cutting process used in milling is one of the most common type of industrial machining methods. Similar to traditional milling spindles, the motor driven spindles are fitted with an integrated motor, thereby eliminating belts and gears for the transmission of power from the motor to the cutting tools. The innovative machine tools should be highly characterized systems in order to retain the necessary precision, efficiency and reliability. To satisfy their end user's reliability and availability requirements, both the spindle system (Tool/Tool-Holder/ Spindle) and motor tool system need to be configured for their usability and output results. However, the quality of a control device in industrial practice is greatly affected by the spindle cutting output and its reliability. The motor spindles are nothing but the rotating drive shafts which acts as axes for cutting force tools or in machining process for holding cutting instrument. Hence the spindles are one of the important factor in machining tool process and productivity, as these are used to produce parts as well as machines that produce components, which in turn have a significant impact on production levels and quality of products.

THE INFLUE NCE OF CUTTING FLUID CONTAINING ZINC ASPARTATE ON THE WEAR OF CUTTING TOOLS DURING TURNING

Tribologia ◽  
2019 ◽  
Vol 286 (4) ◽  
pp. 53-61
Author(s):  
Monika MADEJ ◽  
Joanna KOWALCZYK ◽  
Dariusz OZIMINA ◽  
Łukasz NOWAKOWSKI ◽  
Andrzej KULCZYCKI
Keyword(s):  
Cutting Tools ◽  
Cutting Fluid ◽  
Cutting Fluids ◽  
Surface Layers ◽  
Zinc Compounds ◽  
Cnc Lathe ◽  
Optical Profilometer ◽  
Technological Quality ◽  
Zinc Aspartate

The paper presents the results of tests of the wear of cutting tools following the process of facing with lubrication with cutting fluids. The tests were carried out on a CNC lathe with the use of two cutting fluids: one based on mineral oil and the other containing zinc aspartate. After machining, the tool wear was measured using a stereoscopic inspection microscope. Observation of surface morphology and identification of elements was performed using a scanning electron microscope with a EDS analyser. Measurements of the geometric structure of the surface of turned elements were performed using an optical profilometer. The non-toxic coolant with zinc aspartate used in the tests resulted in the formation of surface layers enriched with zinc compounds, which directly translated into the improvement of technological quality of the workpiece.

Effectiveness of the Cryogenic Treatment of Tungsten Carbide Inserts on Tool Wear When in Full Production Operations

2004 ◽  
Author(s):  
Kenneth A. Arner ◽  
Christopher D. Agosti ◽  
John T. Roth
Keyword(s):  
Tool Life ◽  
Cutting Tool ◽  
Cryogenic Treatment ◽  
Cutting Tools ◽  
Process Variable ◽  
Production Lines ◽  
Industrial Partner ◽  
Full Production ◽  
Carbide Inserts

As a cutting tool wears, the quality of the parts being produced by the tool are reduced. Therefore, it is important to change cutting tools whenever the wear on the tool begins to cause unacceptable or out-of-specification parts. However, frequent replacement of tooling is not only expensive, it also results in a loss of production throughput. Therefore, in order to lower tooling costs and increase production rates, it is vital to extend cutting tool life. Thus, this research focuses on establishing the effect that cryogenically treating carbide inserts has on the overall tool life when the tools are operating in production. To validate the effectiveness, multiple treated and untreated cutting tools for five styles of inserts are examined. The cutters are tested in production lines that are fabricating parts for an industrial partner where the only process variable that is changed is the cryogenic treatment of the tooling. For the five insert styles tested, each style provided very consistent changes in overall tool life. However, the amount of improvement was dependent on the tool style. One style was found to have its life doubled, whereas, another style had its life decreased. Possible causes for this difference in effectiveness of the treatment are presented, along with a discussion concerning the actual costs savings that the treatment represents for the industrial partner.

Preparation and Experimental Study of the Complex Shape Carbide Diamond Coated Tools

2013 ◽  
Vol 579-580 ◽  
pp. 153-157
Author(s):  
You Yi Zheng ◽  
Chun Lin Zhang ◽  
Xing Xin Xu
Keyword(s):  
Surface Quality ◽  
Cutting Tools ◽  
Diamond Films ◽  
Complex Surface ◽  
End Mill ◽  
Laser Raman ◽  
Coated Tools ◽  
Wide Range ◽  
Hot Filament

The CVD diamond films have a series of excellent performances, so it has a wide range of applications in the cutting tools, wearable devices, electrochemical electrodes and other fields, and it has a very substantial market prospects. In this study, The diamond films with a layer of uniform and smooth were deposited on the surface of the complex surface YG6 carbide end mill by using the hot filament CVD method, the quality of diamond films was detected by using the scanning electron microscopy and the laser Raman spectrometer. The cutting performances of diamond coated end mill were evaluated from the workpiece surface quality and tool life two aspects by cutting silicon carbide aluminum reinforced composites, and compared with the uncoated carbide tools. The experimental results show that because of the cutting tool was pretreated that make tool surface coarsening, leading the surface quality was machined by diamond coated tools is lower than the carbide cutting tools. However, the coating can protect the tools, increase the wear resistance of the coated tools and make the life of the diamond coated tools increase 3-5 times than the carbide cutting tools.

scholarly journals Analysis of the Performance of Drilling Operations for Improving Productivity

2021 ◽  
Author(s):  
Majid Tolouei-Rad ◽  
Muhammad Aamir
Keyword(s):  
High Speed ◽  
Cutting Tools ◽  
High Speed Steel ◽  
Dimensional Accuracy ◽  
Vital Role ◽  
Machining Process ◽  
Drilling Process ◽  
Single Shot ◽  
Drilling Operations

Drilling is a vital machining process for many industries. Automotive and aerospace industries are among those industries which produce millions of holes where productivity, quality, and precision of drilled holes plays a vital role in their success. Therefore, a proper selection of machine tools and equipment, cutting tools and parameters is detrimental in achieving the required dimensional accuracy and surface roughness. This subsequently helps industries achieving success and improving the service life of their products. This chapter provides an introduction to the drilling process in manufacturing industries which helps improve the quality and productivity of drilling operations on metallic materials. It explains the advantages of using multi-spindle heads to improve the productivity and quality of drilled holes. An analysis of the holes produced by a multi-spindle head on aluminum alloys Al2024, Al6061, and Al5083 is presented in comparison to traditional single shot drilling. Also the effects of using uncoated carbide and high speed steel tools for producing high-quality holes in the formation of built-up edges and burrs are investigated and discussed.

scholarly journals Ensuring the Quality of Treatment of Holes in Products from Polymeric Composite Materials

2019 ◽  
pp. 78-88
Author(s):  
V.M. Yaroslavtsev
Keyword(s):  
Composite Materials ◽  
Hybrid Composite ◽  
Energy State ◽  
Cutting Tools ◽  
Roughness Parameter ◽  
Polymeric Composite ◽  
Treatment Area ◽  
Energy Impact ◽  
Compressive Stresses

The generalized results of industrial and laboratory tests of unconventional technologies for improving the quality of manufacturing holes in products made of fibrous polymeric and layered hybrid composite materials are considered. Developed in BMSTU combined methods of processing, non-standard cutting tools and devices that ensure the combination of diverse energy impact on the treated surface, as well as the targeted creation of the required energy state of the material were given. It is shown that the application of the cutting method with additional technological coating on the operations of reaming, deployment and boring provides, depending on the processing conditions, a decrease in surface roughness of 1--3 classes (from 4 to 5--7 classes). Drilling with a thermo-mechanical impact on the cutting layer reduces the roughness parameter from Rz = 40--20 μm (class 4) to Ra = 2.5--1.6 μm (class 6). At the same time on the treated surfaces, fluffiness is completely eliminated. The possibility of increasing the productivity and quality of processing holes in multilayer hybrid composite materials by the use of special-purpose drills, which clean the processed surface on the backward pass of the tool, is considered. Practical recommendations are given to ensure defect-free processing of the hole edges at the tool inlet and outlet using additional coatings, as well as the creation of compressive stresses in the treatment area with the help of special tools.

scholarly journals STUDY OF THE INFLUENCE OF CUTTING FLUID AMOUNT IN STEEL TURNING OF AISI 52100

2020 ◽  
Vol 5 (7) ◽  
pp. 49-56
Author(s):  
Ítalo de Abreu Gonçalves ◽  
Leonardo Leite ◽  
Tarcísio G. De Brito ◽  
Emerson J. De Paiva ◽  
Carlos H. De Oliveira ◽  
...  
Keyword(s):  
Cutting Tools ◽  
Roughness Parameter ◽  
Cutting Speed ◽  
Cutting Fluid ◽  
Machined Surface ◽  
Aisi 52100 ◽  
Machined Parts ◽  
Steel Turning ◽  
Good Productivity

The steel turning AISI 52100 has been gaining prominence in industry in recent years, as it allows machined parts to have better quality without the need for furthers processes. However, to ensure the final product quality, it is important that the turning for machining procedure is well planned and prepared, so that the cutting tools have their wear minimized in the process, while putting good productivity rates and zero occurrences of reworked parts. Thus, this article will study the quality of the machined surface in the turning process using interchangeable PCBN inserts. The aim is to identify the optimal combination of the input parameters that are cutting speed (Vc), feed (f) and machining depth (ap). The response measured is the roughness parameter Ra, under the influence of cutting fluid and tool wear.

Finishing Methods of Tools Functional Surfaces

2013 ◽  
Vol 581 ◽  
pp. 18-21
Author(s):  
Imrich Lukovics ◽  
Jiří Čop
Keyword(s):  
Residual Stress ◽  
Cutting Tools ◽  
Grinding Wheels ◽  
Rotating Disc ◽  
Functional Surfaces ◽  
Machining Speed

Article shows the calculation of the stress in a rotating disc and the possibility of using proprietary forms of instruments for speed grinding. It presents the results of speed and efficient cutting tools in machining these materials alloyed with chromium. In addition, it notes the results of the influence of technological conditions on the quality of surfaces, the residual stress in the workpiece, resulting from the machining speed and the influence of technological conditions on the wear of grinding wheels. Finally, some options for the use of finishing techniques in practice are mentioned.

Generation of NC Program for Realizing High Speed Feed Rate of Cutting Tool

2012 ◽  
Vol 523-524 ◽  
pp. 398-403
Author(s):  
Shintaro Sakurai ◽  
Hideki Aoyama ◽  
Noriaki Sano
Keyword(s):  
Feed Rate ◽  
High Speed ◽  
Cutting Tools ◽  
Sampling Time ◽  
Machined Surface ◽  
Nc Program ◽  
Circular Arcs ◽  
Offset Curves ◽  
Acceleration And Deceleration

As the feed rate of cutting tools is influenced by the quality of NC programs, this causes two problems when cutting freeform surfaces using NC machine tools, one is the feed rate does not reach the specified value, and the other is the quality of the machined surface decreases due to the large acceleration and deceleration of the control axes. One reason for these problems is that the method to generate cutter location data does not take into consideration the sampling time of the NC controller. To improve these problems, the approximation of offset curves with a series of circular arcs has generally been proposed. But conventionally, circular arc interpolation algorithms are complicated and not rational. So, in this study, we proposed two simple NC program generation methods. (1) Approximate the offset form with circular arcs based on the location of the center of curvature. (2) Make the distance between the cutter location points of the NC data an integral multiple of the “feed rate command F × sampling time T”. We also confirm the effectiveness of the proposed methods by simulations and experiments.

Sign in / Sign up

Export Citation Format

Share Document