The Study of Automatic Programming System for Near-Field Electrospinning Direct Write

2011 ◽  
Vol 197-198 ◽  
pp. 3-7 ◽  
Author(s):  
Zhi Min Lin ◽  
Bin Yao ◽  
Jun Jun Ye ◽  
Gao Feng Zheng
Keyword(s):  
Near Field ◽  
Processing Parameters ◽  
Machining Process ◽  
Open Architecture ◽  
Programming System ◽  
Automatic Programming ◽  
Direct Write ◽  
Nano Structure ◽  
Experimental Base ◽  
Open Architecture Cnc

In order to control the machining process of Direct-Write based on Near-field Electrospinning automatically, an automatic programming system used for an open architecture CNC system is proposed in this paper. This system descirbes the machining trajectory via the 2D CAD drawing, from which the data is extracted by the system. According to the processing parameters, the data is classified and reordered, and NC codes are automatically generated. The system solves the problem in integrating the design and machining, makes it more convenient to experimental research and realizes patterned fabrication of micro/nano-structure,which provides a good experimental base for the development of electrospinning technology.

Deposition Characteristics of Direct-Write Suspended Micro/Nano-Structures

2009 ◽  
Vol 60-61 ◽  
pp. 439-444 ◽  
Author(s):  
Gao Feng Zheng ◽  
Ling Yun Wang ◽  
Hong Lian Wang ◽  
Dao Heng Sun ◽  
Wen Wang Li ◽  
...  
Keyword(s):  
Electrostatic Force ◽  
Near Field ◽  
Surface Tension Force ◽  
Solution Concentration ◽  
Water Evaporation ◽  
Direct Write ◽  
Nano Structure ◽  
Electrical Field Strength ◽  
Motion Speed ◽  
Micro Pillars

Direct-Write (DW) technology based on Near-Field Electrospinning (NFES) was introduced to fabricate suspended micro/nano-structure on pattern substrate, and the deposition behaviors of DWed structure under different collector motion speed (CMS) were discussed to improve control of DW technology based on NFES. Deposit point of DWed structure on the substrate can be controlled accurately under the observation of microscope, and position error of micro/nano-structure is less than 5µm. When CMS is compatible with the electrospinning speed, straight line micro/nano-structure can be direct-written across micro-trenches with width of 5~40µm or to bridge two micro-pillars with diameter of 10µm. Due to the water evaporation and surface tension force, DWed structures suspended in the air would shrink smaller compared with that deposited on the top surface of pattern. The shrink ratio of micro-structure is higher than nano-structure and the shrink ratio decreases with the solution concentration increases. When the CMS is lower than electrospinning speed, the electrostatic force and elastic force would play a more prominent role on the deposition behavior of DWed structure. The electrical field strength on the top surface of pattern is higher than the space between two patterns, DWed thin film would deposit along the trip pattern and nanofiber would prefer to aggregate on the top surface of pattern under electrostatic force. When solution concentration is lower than 18%, nanofiber aggregate on the pattern would coagulate to form polymer bundle.

Coupled Motion Control and Adjustment in Automatic Programming System of CNC Hobbing Machines

2011 ◽  
Vol 86 ◽  
pp. 552-555
Author(s):  
Qiang Li ◽  
Li Li Yi ◽  
Shi Long Wang ◽  
Jie Zhou
Keyword(s):  
Motion Control ◽  
Machining Process ◽  
Programming System ◽  
Automatic Programming ◽  
Processing Efficiency ◽  
Coupled Motion ◽  
Coupling Relationship ◽  
Adjustment Time ◽  
Gear Hobbing ◽  
Relationship Model

The motion relationship model of all axes involved in CNC hobbing machines is established. A single pitch adjustment method based on motion coupling relationship in gear hobbing is proposed. With position adjustment of only 0 to 1 pitch, the same motion coupling relationship during the whole machining process can be guaranteed. Though automatic programming system based on SINUMERIK 840D, the coupled motion control and adjustment in CNC hobbing process is realized. And practical application in CNC hobbing machines shows that this method can reduced adjustment time effectively during process, improving processing efficiency.

Automatic Programming System for Machining Center On-Line Inspection

2010 ◽  
Vol 139-141 ◽  
pp. 1233-1236
Author(s):  
Jian Jun Meng ◽  
Fen Liu ◽  
Hong Qiang Sang ◽  
Jin Tian Yun
Keyword(s):  
Production Efficiency ◽  
Machining Process ◽  
Quality Analysis ◽  
Secondary Development ◽  
Programming System ◽  
Automatic Programming ◽  
Machining Center ◽  
Object Arx ◽  
On Line ◽  
Tool Damage

Currently, manual inspection and off-line inspection play an important role in the inspection methods of machining process, which severely restricts the development of inspecting automation. In the paper, automatic programming system for machining center on-line inspection was developed by secondary development kit object ARX of AutoCAD. Inspecting datum was obtained, inspecting process planning was laid up and inspecting program was made automatically. The inspection can be applied to automatic workpiece setting up, on-line inspection of workpiece, data processing, quality analysis and compensation of machined workpiece errors, which led to increase precision, production efficiency and quality and reduced the rate of rejection and tool damage.

Research on the Key Technology of Automatic Programming System for Line-Contact Processing

2013 ◽  
Vol 423-426 ◽  
pp. 2873-2876
Author(s):  
Kun Qi Wang ◽  
Bao Chen Yang ◽  
Lei Xiong ◽  
Le Liu
Keyword(s):  
Tool Path ◽  
Nc Machining ◽  
Machining Process ◽  
Programming System ◽  
Automatic Programming ◽  
Line Contact ◽  
Key Technology ◽  
Processing Information ◽  
On Line ◽  
Contact Processing

In view of the current situation of line contact efficiency of NC machining without automatic programing system, the automatic programming system for NC machining based on line contact processing is developed. According to the characteristics of line contact processing, the key technologies in the automatic programming system of this paper is studied. After surface modeling, the data of DXF files generated by CAD systems can be read. And the surface processing information is obtained by these data sorted. Through the design of machining process and the sorting of tool path, the tool path of line contact processing is got. Then the research of soft cut of ruled surface is completed, and the graphical automatic programming is realized.

Key Technologies of Embedded Gear Machining CNC System

2013 ◽  
Author(s):  
Jiang Han ◽  
Xiao-qing Tian ◽  
Lian Xia ◽  
Fu-gen Li ◽  
Jie Cheng ◽  
...  
Keyword(s):  
Tracking Error ◽  
Mathematic Model ◽  
Numerical Control ◽  
Machining Process ◽  
Programming Algorithm ◽  
Contour Error ◽  
Programming System ◽  
Automatic Programming ◽  
Database Technology ◽  
Process Database

A reconfigurable gear machining numerical control system (NC/CNC) architecture is proposed in this paper. The CNC platform can be quickly applied to gear hobbing, shaping, milling and grinding machine, through simple reconfiguring or parameter setting. Parametric automatic programming technology, high speed and high precision electronic gearbox, process database technology are studied. Based on the analysis of the gear machining process, the mathematic model on automatic programming of gear machining is established. Based on the Windows CE operating system, the CNC gear machining automatic programming system is developed on the ARM+DSP hardware platform, including the design of human-machine interface, automatic programming algorithm and other modules. With the support of the automatic programming and process database modules, NC codes can be generated automatically just by inputting gear parameters, tool parameters and process parameters, then, the interpolation data structure can be generated by interpreter module. A new kind of software electronic gearbox (EGB) and its implementation methods are also researched in the embedded CNC. Data flow among the modules is analyzed. Finally, experiments are conducted, and the tracking error and contour error are analyzed. The results show that the proposed gear machining CNC architecture is effective.

Development of NC Wire Cutting Automatic Programming System Based on Component Technology

2014 ◽  
Vol 940 ◽  
pp. 437-440
Author(s):  
Ying Zhang ◽  
Xin Shi
Keyword(s):  
Electrical Discharge Machining ◽  
Machining Process ◽  
Component Technology ◽  
Programming System ◽  
Automatic Programming ◽  
Dynamic Link Library ◽  
Nc Code ◽  
Component Object ◽  
Wire Cutting ◽  
Set Up

Based on analysis and research on the Wire cutting Electrical Discharge Machining process , developers could set up the whole system frame and each component mold ,as well as each component mold of function .At the same time ,developers researched the technique of Component Object Model , used the technique of Dynamic Link Library to realize the graphic input, used the technique of ActiveX to realize the code of Number Control imitation , established the whole database based on Access, successfully, realizing AutoCAD graphic input , taking the data processing and calculating the order of the cut, and then producing the postprocessing files, finally realizing all of NC code imitation .

scholarly journals Virtual horizontal machining center LOLA HBG 80 for program verification and monitoring

2021 ◽  
Vol 49 (3) ◽  
pp. 696-703
Author(s):  
Nikola Vorkapić ◽  
Saša Živanović ◽  
Zoran Dimić ◽  
Branko Kokotović ◽  
Nikola Slavković
Keyword(s):  
Control System ◽  
Virtual Machine ◽  
Program Verification ◽  
Tool Path ◽  
Virtual Machines ◽  
Machining Process ◽  
Open Architecture ◽  
Programming System ◽  
Machining Center ◽  
Nc Machine

This paper describes configuring the virtual horizontal machining center LOLA HBG80 within the programming and verification system and the open architecture control system. The horizontal machining center LOLA HBG 80 is represented by an equivalent virtual machine in a CAD/CAM environment (PTC Creo and Catia), STEP-NC Machine environment, and the control system. Virtual simulation is essential for machining, and the developed virtual machines are used for program verification and monitoring of the machining process. The virtual machine in the programming system allows the verification of the program before sending it to the real machine and includes verification of the tool path (CLF-Cutter Location File) and G-code. The paper also discusses the possibility of applying a new programming method known as STEP-NC and preparing an adequate environment that includes a virtual machine. The virtual machine in the control system represents the last level for the final program verification and the process monitoring system.

The automatic programming system alpha

1965 ◽  
Vol 5 (2) ◽  
pp. 203-214 ◽  
Author(s):  
G.I. Babetskii ◽  
M.M. Bezhanova ◽  
Yu.M. Voloshin ◽  
A.P. Yershov ◽  
B.A. Zagatskii ◽  
...  
Keyword(s):  
Programming System ◽  
Automatic Programming

scholarly journals Comparison contact and thermal imaging methods measure the temperatures of the turning blades during cutting

Mechanik ◽  
2017 ◽  
Vol 90 (3) ◽  
pp. 214-216
Author(s):  
Karol Grochalski ◽  
Piotr Jabłoński
Keyword(s):  
Tool Wear ◽  
Thermal Imaging ◽  
Cutting Tool ◽  
Processing Parameters ◽  
Machining Process ◽  
Influence Of Temperature ◽  
Imaging Methods ◽  
Advantages And Disadvantages ◽  
Influence Of Temperature On ◽  
Materials Used

The paper presents a method of measuring the temperature during cutting and its impact on the machining process. The influence of temperature on the intensity of the cutting tool wear cutting and durability. Shows the measuring position, the materials used and the cutting tool. We present the results of the processing parameters, during which the measurements are made. This paper presents methods for measuring the temperature of the blade using a thermocouple and methods of radiation. It lists the advantages and disadvantages of each method.

scholarly journals Processing variables of direct-write, near-field electrospinning impact size and morphology of gelatin fibers

2020 ◽  
Author(s):  
Zachary G. Davis ◽  
Aasim F. Hussain ◽  
Matthew B. Fisher
Keyword(s):  
Acetic Acid ◽  
Acid Concentration ◽  
Near Field ◽  
Fiber Formation ◽  
Direct Write ◽  
Acetic Acid Concentration ◽  
Direct Writing ◽  
Fiber Morphology ◽  
Gelatin Concentration ◽  
The Impact

AbstractSeveral biofabrication methods are being investigated to produce scaffolds that can replicate the structure of the extracellular matrix. Direct-write, near-field electrospinning of polymer solutions and melts is one such method which combines fine fiber formation with computer-guided control. Research with such systems has focused primarily on synthetic polymers. To better understand the behavior of biopolymers used for direct-writing, this project investigated changes in fiber morphology, size, and variability caused by varying gelatin and acetic acid concentration, as well as, process parameters such as needle gauge and height, stage speed, and interfiber spacing. Increasing gelatin concentration at a constant acetic acid concentration improved fiber morphology from large, planar structures to small, linear fibers with a median of 2.3 µm. Further varying the acetic acid concentration at a constant gelatin concentration did not alter fiber morphology and diameter throughout the range tested. Varying needle gauge and height further improved the median fiber diameter to below 2 µm and variability of the first and third quartiles to within +/-1 µm of the median for the optimal solution combination of gelatin and acetic acid concentrations. Additional adjustment of stage speed did not impact the fiber morphology or diameter. Repeatable interfiber spacings down to 250 µm were shown to be capable with the system. In summary, this study illustrates the optimization of processing parameters for direct-writing of gelatin to produce fibers on the scale of collagen fibers. This system is thus capable of replicating the fibrous structure of musculoskeletal tissues with biologically relevant materials which will provide a durable platform for the analysis of single cell-fiber interactions to help better understand the impact scaffold materials and dimensions have on cell behavior.

Sign in / Sign up

Export Citation Format

Share Document