A Design-Analysis and Simulation Approach of Ball-End Cutter Based on OpenGL

2010 ◽  
Vol 139-141 ◽  
pp. 1281-1284
Author(s):  
Mao Fu Liu ◽  
Xiong Hua Guo ◽  
Hui Xian Han
Keyword(s):  
Mathematical Models ◽  
Computer Aided Design ◽  
Processing System ◽  
Simulation Models ◽  
Design Analysis ◽  
Grinding Wheel ◽  
Rake Face ◽  
Simulation Approach ◽  
Complex Ball ◽  
Flank Face

A design-analysis and simulation approach of complex ball-end cutter was proposed by using computer graphics and OpenGL control in this paper. The mathematical models of rake face and flank face of a complex ball-end cutter were built as the simulation condition. A computer-aided design and simulation processing system of complex tool was presented through pre-modeling OpenGL control. Some 3D simulation models of complex ball-end cutter including spiral cylinder, ball-head (including rake face, chip groove, first flank face and second flank face) and grinding wheel were created respectively. According to mathematical models and VC++ software platform, transformation and machining animation simulations of ball-end cutter were designed and realized visually using OpenGL control interface technique. The results of Three-dimensional design and simulation will offer sufficient theory foundation for virtually manufacturing ball-end cutter.

Additiv gefertigtes Drehhaltersystem*/Additively manufactured turning tool system - Impact of application strategy of cryogenic carbon dioxide snow on thermomechanical tool load

2017 ◽  
Vol 107 (06) ◽  
pp. 420-425
Author(s):  
T. Heep ◽  
E. Prof. Abele
Keyword(s):  
Carbon Dioxide ◽  
Rake Face ◽  
Turning Operations ◽  
Research Activities ◽  
Flank Face ◽  
Face Cooling ◽  
System Impact

Das große Potenzial kryogener CO2-Schneekühlung beim Drehen schwer zerspanbarer Materialien wurde von verschiedenen Experten bereits nachgewiesen. Im Rahmen dieser Untersuchung wird ein additiv gefertigter Drehhalter mit erhöhter Funktionalität und modularer Bauweise vorgestellt. Dieser erlaubt neben der simultanen span- und freiflächenseitigen Kühlung mit CO2-Schnee erstmals die spanflächenseitige Applikation kryogener Mehrstoffkühlung beim Drehen.   The potential of cryogenic CO2-cooling in machining of difficult-to-cut materials has been confirmed by numerous research activities. This paper introduces an additively manufactured turning tool system that features enhanced functionality and modularity. Despite enabling the simultaneous cooling of a cutting edge’s rake and flank face using CO2-snow, it is the first system that allows for cryogenic multi-component rake face cooling in turning operations.

scholarly journals On the Conditional Logic of Simulation Models

2018 ◽  
Author(s):  
Duligur Ibeling ◽  
Thomas Icard
Keyword(s):  
Structural Equation ◽  
Structural Equation Models ◽  
Simulation Models ◽  
Conditional Reasoning ◽  
Satisfiability Problem ◽  
Simulation Program ◽  
Conditional Logic ◽  
Simulation Approach ◽  
Np Completeness ◽  
Complexity Result

We propose analyzing conditional reasoning by appeal to a notion of intervention on a simulation program, formalizing and subsuming a number of approaches to conditional thinking in the recent AI literature. Our main results include a series of axiomatizations, allowing comparison between this framework and existing frameworks (normality-ordering models, causal structural equation models), and a complexity result establishing NP-completeness of the satisfiability problem. Perhaps surprisingly, some of the basic logical principles common to all existing approaches are invalidated in our causal simulation approach. We suggest that this additional flexibility is important in modeling some intuitive examples.

Epistemic Opacity

2019 ◽  
pp. 98-131
Author(s):  
Johannes Lenhard
Keyword(s):  
Mathematical Models ◽  
Simulation Models ◽  
Scientific Understanding ◽  
The Other ◽  
Weak Version ◽  
Simulation Based ◽  
Lower Standard ◽  
Epistemic Standards ◽  
Epistemic Opacity ◽  
Experimental Runs

This chapter shows that—and how—simulation models are epistemically opaque. Nevertheless, it is argued, simulation models can provide a means to control dynamics. Researchers can employ a series of iterated (experimental) runs of the model and can learn to orient themselves within the model—even if the dynamics of the simulation remain (at least partly) opaque. Admittedly, such an acquaintance with the model falls short of the high epistemic standards usually ascribed to mathematical models. This lower standard is still sufficient, however, when the aim is controlled intervention in technological contexts. On the other hand, opacity has to be accepted if the option for control is to remain in any way open. This chapter closes by discussing whether epistemic opacity restricts simulation-based science to a pragmatic—“weak”—version of scientific understanding.

scholarly journals Additive surface texturing of cutting tools using pulsed laser implantation with hard ceramic particles

2020 ◽  
Vol 14 (5-6) ◽  
pp. 733-742
Author(s):  
S. Böhm ◽  
A. Ahsan ◽  
J. Kröger ◽  
J. Witte
Keyword(s):  
Flank Wear ◽  
Cutting Tools ◽  
Surface Texturing ◽  
Pulsed Laser ◽  
Ductile Cast Iron ◽  
Surface Structures ◽  
Rake Face ◽  
Dry Cutting ◽  
Ceramic Particles ◽  
Flank Face

AbstractIn recent years surface texturing of the cutting tools has proved to improve tribological characteristics at tool/chip and tool/workpiece interface and help to reduce cutting and feed forces as well as tool wear. Most, if not all, of the studies have focused on subtractively made textures whereby the material is removed from the surface. This study investigates the performance of additively made surface structures whereby hard ceramic particles are dispersed in the form of dome shaped textures on the surface of the cutting tools using solid state millisecond pulsed laser (pulsed laser implantation). Dry cutting tests were performed on ductile cast iron. The results show a greater reduction of process forces with implantation of flank face as compared to rake face. Both cutting and feed forces were reduced by 10% compared to the non-structured tool. In addition, the tool life increased by a factor of 3 whereas the average flank wear reduced by as much as 80% and cutting edge rounding by up to 60%.

Experimental Study of Tool Wear during Quasi High Speed Turning Titanium Alloy with Large Cutting Depth

2014 ◽  
Vol 800-801 ◽  
pp. 548-552
Author(s):  
Li Fu Xu ◽  
Wei Liang Dong ◽  
Shu Tao Huang ◽  
Bao Lin Dai
Keyword(s):  
Experimental Data ◽  
Titanium Alloy ◽  
High Speed ◽  
Flank Wear ◽  
Rake Face ◽  
Cutting Depth ◽  
Tool Flank Wear ◽  
High Speed Turning ◽  
Flank Face ◽  
Cutting Speeds

The wear morphology of rake face and flank face of tool is investigated by turning titanium alloy TC4 with CBN solid tool. It has been observed that the main wear form of rake face and flank face of tool is groove wear. The relation between tool flank wear and cutting speeds, feed rate, and cutting depth obtained from experimental data is given.

scholarly journals FPGA Prototyping of Micro-Blaze soft-processor based Multi-core System on Chip

2018 ◽  
Vol 7 (2.16) ◽  
pp. 57
Author(s):  
G Prasad Acharya ◽  
M Asha Rani
Keyword(s):  
Computer Aided Design ◽  
Processing System ◽  
System On Chip ◽  
Core System ◽  
Design Cycle ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
On Chip ◽  
Aided Design ◽  
Level Parallelism

The increased demand for processor-level parallelism has many-folded the challenges for SoC designers to design, simulate and verify/validate today’s Multi-core System-On-Chip (SoC) due to the increased system complexity. There is also a need to reduce the design cycle time to produce a complex multi-core SOC system thereby the product can be brought into the market within an affordable time. The Computer-Aided Design (CAD) tools and Field Programmable Gate Arrays (FPGAs) provide a solution for rapidly prototyping and validating the system. This paper presents an implementation of multi-core SoC consisting of 6 Xilinx Micro-Blaze soft-core processors integrated to the Zynq Processing System (PS) using IP Integrator and these cores will be communicated through AXI bus. The functionality of the system is verified using Micro-Blaze system debugger. The hardware framework for the implemented system is implemented and verified on FPGA.  

Optimization Simulation of Hybrid Assembly Production Sequencing Management

2013 ◽  
Vol 850-851 ◽  
pp. 1008-1011
Author(s):  
Jian Feng Liu
Keyword(s):  
Mathematical Models ◽  
Production Process ◽  
Production Line ◽  
Production Capacity ◽  
Simulation Models ◽  
Manufacturing Plant ◽  
Hybrid Assembly ◽  
Automobile Engine ◽  
Optimization Simulation ◽  
Assembly Production

Sequencing of hybrid assembly production directly affects the balancecontinuity and punctuality of production process. First, the mathematical models with MILP of hybrid assembly production are established, and then the sets of sequencing scheme of minimum makespan which meet customers demands are obtained. Furthermore workshop simulation models with Flexsim software are established. In this paper, the painting hybrid assembly production line of some automobile engine manufacturing plant was employed to analyze the sequencing as an example, and the obtained painting production line sequencing scheme is consistent with the actual production of enterprises and it improves production capacity.

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