Lasers in Micro-Manufacturing

In: Computers and Technology

Submitted By arngnick
Words 2338
Pages 10
Lasers in Micro-manufacturing

Laser processes have continued to be used for a considerably long time for specific micro-manufacturing processes. This is because there have been several decades of such applications in development through which conventional manufacturing approaches could not satisfy the major demands relating to accuracy and flexibility. On the other hand, the outstanding share of micro applications across the entire laser market has extensively been a minor segment through which laser cutting as well as welding have proven to be dominant within the laser application sector.1 As a result of the increasing trend towards miniaturization, as well as higher integration for diverse consumer products, laser processes are well becoming more important under which laser micro manufacturing continues to show a considerably high market increase.7 These developments are both fostered by the strong market pull and the availability of lasers that are very high quality. This consequently allows a specific deposition of energy across a micrometer scale which remains at high processing speeds. On the other hand, laser technology greatly lowers operational costs, enables easy installation as well as lowering maintenance costs which continue making lasers a more versatile tool for application within industrial micro manufacturing processes.

Apart from the existing areas of application for laser micro processing across fine mechanics and defined electronics, there are current megatrends towards considerable energy savings and health as well as global information through which the society has developed numerous laser applications. 6 Within the scope of production of distinctly highly effective laser drilling processes used on solar cells, the laser thin film ablation coupled with laser joining aspects have been processes that continue providing high processing…...

Similar Documents

Laser

................................................................................. 3 Results and discussion ........................................................................................................................ 4 Effect of changing the number of pulse and how these results change with laser fluence, F ....... 4 Change of etch rate with increasing fluence .................................................................................. 4 Threshold fluence, FT and absorption coefficient, α ....................................................................... 5 System B.................................................................................................................................................. 6 Theory ................................................................................................................................................. 6 Results and discussion ........................................................................................................................ 7 Effect of changing the speed on the laser cutting process ............................................................. 7 Effect of changing power on the laser cutting process................................................................... 7 Change in heat affected zone width against power ....................................................................... 8 Conclusions ...................................................................................

Words: 2426 - Pages: 10

Lasers

...Information Search: LASER (Light Amplification by the Stimulated Emission of Radiation) In 1917 a process called Stimulated Emission, this is what makes lasers possible and was thought of by Albert Einstein. Although this was thought of so early, it took another 30 years before other physicists made practical usage of this principle. Once completed, scientists were amazed at the breakthrough, however it didn’t, at the time, have any real use. Lasers is a source of light used in our everyday lives. They are very focused and accurate sources of light, thus we find them almost anywhere and help us in many different ways. They are incredibly useful in the Medical Field. They are often used in Laser Eye Surgery and Laser Ulcer Removal. They do so, because the laser beam is so intense, it burns through a tiny amount of tissue within the eye. The laser can also be used as a scalpel, which can make a small incision to reach the stomach ulcer. Lasers are also used in Compact Disk Players, CDs/DVDs/Blu Ray, Super Market Scanners, Laser Shows, Fiber Optic Cables, Cutting, Measuring Distance and much more. Clearly lasers have a major impact in our lives as advancing human beings. Atoms can get “excited” when they take in light, heat and/or electricity. Usually though atoms will remain in a “ground state” which is more stable, and will return to this state within nanoseconds. However to return to this state, the atoms must relieve themselves of the......

Words: 871 - Pages: 4

Laser

...LASERS IN PREPROSTHETIC SURGERY LASER is an acronym for light amplification of stimulated emission of radiation. Laser application in maxillofacial surgery practice covers control of leukoplakia, oral malignancy, preprosthetic or periodontal surgery, temporomandibular joint, uvulopalatostomy, and cosmetic procedures. Clinical lasers are of two types; soft lasers are essentially an aid to healing with relatively few rigorous studies available to support their use. Surgical hard lasers, however, can cut both hard and soft tissues and replace the scalpel and drill in many areas. From initial experiments with the ruby laser most clinicians are using argon, CO2 and now Nd:YAG systems. Both the CO2 and Nd:YAG lasers can be used for intraoral soft tissue surgeries. The advantages of lasers include a relatively bloodless surgical and postsurgical course, minimal swelling and scarring, coagulation, vaporization, and cutting, minimal or no suturing, reduction in surgical time, and, in a majority of cases, much less or no postsurgical pain. CO2 LASER Since its development in the early 1960s, the CO2 laser has been rapidly introduced into medical research and almost every dental and medical surgical specialty. In dental surgery it is mainly used for oral soft tissue applications. High-power lasers are one of the greatest technologies advances in dentistry field. In 1989 the first laser specifically designed for use in dentistry, a carbon dioxide (CO2) laser was introduced. The CO2...

Words: 1589 - Pages: 7

Laser Jet

...[pic] Criterios de Calidad en el Corte por Láser [pic] |:: Planchas y Tubos de: | |[pic] | |Acero en General: |SAE 1010, 1020, 1045; Diamantada, T1 360/500hB; BORA; Zinc/Alum, Galvanizado, Laina Acerada | | |(Fleje azul), Templado; Cromo Níquel; Acero Rápido; etc. | |Espesores: |desde: 0,1mm Hasta: 20mm. | |Tolerancias: |desde: 0,1mm Hasta: 6mm.: ±0,2mm.desde: 8mm Hasta: 10 mm.: ±0,3mm.desde: 12mm Hasta: 20 mm.: | | |±0,5mm. | |Acero Inoxidable: |AISI 302, 304, 310, 316, 420, 430, Diamantada, etc. | |Espesores: |desde: 0,1mm Hasta: 12mm. | |Tolerancias: |desde: 0,1mm Hasta: 6mm.: ±0,2mm.desde: 8mm Hasta:12mm.: ±0,5mm. | |Aluminio: |Temple H. | |Espesores: |desde: 0,1mm Hasta: 10mm. | |Tolerancias: |desde: 0,1mm Hasta:......

Words: 4394 - Pages: 18

Laser Communication

... LASER COMMUNICATION SYSTEM (Light Amplification by Stimulated Emission of Radiation) Abstract: Laser communication is one of the key areas in wireless Communications. They work only under clear line-of-sight conditions between each unit, but they eliminate the need for securing right of ways, buried cable installations and no government licensing is necessary. Free space laser communications systems can be quickly deployed since they are small and do not need any radio interference calculations. Additionally, no spectrum fees have to be paid. This paper includes analysis, optimization, design and system level development of signal transformation between satellites or any two sources. Which work similarly to fibre optic links, except the beam is transmitted through free space. The carrier used for the transmission signal is typically generated by a laser diode. Two parallel beams are needed, one for transmission and one for reception. INTRUDUCTION: Laser Communication is one of the emerging areas of wireless communication system. Due to its low noise ratio makes its one of the well suited communication medium for exchange of information. Currently laser commutation is adopted in satellite communication for space research activities and due to its efficiency on low noise ratio, inexpensive, low power and its flexibility and its resistance to the radio interferences makes laser communication as one of research area in wireless communication. In this process, this paper...

Words: 2114 - Pages: 9

Lasers in Dentistry

...Lasers in Dentistry Table Clinic Abstract Advances in technology have resulted in the introduction of a range of new methods for use in surgical periodontal therapy, including lasers. Over the years, dental lasers have become increasingly popular in the field of dentistry. They have increased in a variety of dental procedures, especially in surgeries of soft tissues. This research aims to highlight concepts related to lasers in the oral cavity, which have been learned over the past few years. This paper will evaluate the lasers effectiveness in the removal of hyperpigmentation, oral and maxillofacial surgery, treatment of periodontal disease, and the removal of oral lesions. Outline 1. Lasers used in dental procedures • Background • Effects of laser on tissue • Disadvantages • Indications • Contraindications • Complication prevention • Patient education • Benefits A. Removing lesions • Benign lesions • Premalignant lesions • Selected malignant lesions B. Oral and maxillofacial surgery • Diode laser for soft tissue surgery C. Depigmentation • The scalpel technique • Rotary abrasive technique • Diode laser surgery D. Treatment of periodontal disease Bibliography Murthy, M., Kaur, J., & Das, R. (2012). Treatment of gingival hyperpigmentation with rotary abrasive, scalpel, and laser techniques: A case series. Journal of Indian Society of Periodontology, 16(4), doi: PMCID: PMC3590738 Pandurić, D. G., Bago,......

Words: 329 - Pages: 2

Manufacturing

...MANUFACTURING Manufacturing is the production of merchandise for use or sale using labor and machines, tools, chemical and biological processing, or formulation. The term may refer to a range of human activity, from handicraft to high tech, but is most commonly applied to industrial production, in which raw materials are transformed into finished goods on a large scale. Such finished goods may be used for manufacturing other, more complex products, such as aircraft, household appliances or automobiles, or sold to wholesalers, who in turn sell them to retailers, who then sell them to end users – the "consumers". FACTS ABOUT MANUFACTURING IN THE PHILIPPINES: * Manufacturing accounts for nearly 24% of the Philippines' total GDP, while manufactured goods comprise 90% of Philippine exports, including furniture and fixtures, transport equipment, petroleum products, miscellaneous manufactures, electrical machinery, leather products, beverages, paper and paper products, basic metal, fabricated metal products, non-metallic mineral products, rubber and plastic products, textiles, and many more. * The Philippines is now considered one of the most competitive areas for manufacturing. After the unfortunate events in Japan, flooding in Thailand, the rising costs of countries such as Vietnam and China, the Philippines now is in position to lead manufacturing growth in the Asia. * The bulk of the Philippine manufacturing industry is concentrated in Manila, the capital.......

Words: 1924 - Pages: 8

Additive Manufacturing

...Jeremy Breland Jenica Draney English 101-003 6-23-2014 Print the World of Tomorrow 3D Printing is the manufacturing process of the future brought to your home today. It all begins with acquiring the printing device, it comes in kits, complete devices, or even your buddy with their own printer could “print you off” a copy of their device. All you would need after getting your printer set up would extra polymer spools, a computer with the program to translate the instructions of the build, and the digital instructions for your build. 3D Printing is the process of using a computer controlled printing head that travels along the X,Y, and Z axis that leave layers of molten plastic or bio organic material on a flat surface or The prices of 3D Printers vary by model, make and the company who makes it. The cheapest home built device may cost between 150-300 dollars to professional built devices ranging from 6000 to 48,000 dollars. The process of selecting which device is right for your needs depends on a lot of factors; your price range, type of computer, what you will be manufacturing, how big the item is you would like to make, availability of resources, and your mind, the sky is the limit. Currently 3D Printing is only available in most 1st World Nations as the price, materials, technology, and power are present. However as power sources and materials become more available in poorer regions this technology will spread, making it available to print and manufacture......

Words: 1191 - Pages: 5

Laser

...TERM PAPER LASER, ACTION, EINSTEIN THEORY OF LASER, TYPES, APPLICATIONS IN INDUSTRY & MEDICAL FIELD SUBJECT: CURRENT, ELECTRICITY & MODERN PHYSICS SUBJECT CODE: PHY-113 SUBMITTED TO: Dr. AMRITA SAXENA SUBMITTED BY: JAGDEEP SINGH SECTION: C7802 ROLL No.:RC7802A21 REG. No.: 10804440 CONTENTS • • • • • Acknowledgement Introduction Laser action Einstein theory of laser Types of lasers 1. Based on energy level 2. Based on the material used • • • • Applications Recent discoveries Recent applications References ACKNOWLEDGEMENT For the completion of this term paper I would like to acknowledge my respected teacher Dr .AMRITA SAXENA who was always worthily helpful to help me in my queries in different aspects. I would also like acknowledge my friends who helped me a lot in the completion f this and were always there at one call. JAGDEEP SINGH INTRODUCTION The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. Light is really an electromagnetic wave. Each wave has brightness and color, and vibrates at a certain angle, so-called polarization. This is also true for laser light but it is more parallel than any other light source. Every part of the beam has (almost) the exact same direction and the beam will therefore diverge very little. With a good laser an object at a distance of 1 km (0.6 mile) can be illuminated with a dot about 60 mm (2.3 inches) in radius. As it is so parallel it can also be focused to very......

Words: 1698 - Pages: 7

Micro Cars

...WRITTEN REPORT – TP019 Micro+ Ridhwan Ismail Perlyn Ho Brandon Goh Yeo Li Sin Seow Jia Chun TAMPINES JUNIOR COLLEGE PROJECT WORK WRITTEN REPORT – TP019 Micro+ Ridhwan Ismail Perlyn Ho Brandon Goh Yeo Li Sin Seow Jia Chun TAMPINES JUNIOR COLLEGE PROJECT WORK Contents | | | Chapter 1 | Introduction | Page | 1.1 | Project Aim | 1 | 1.2 | Project Context: Microcars | 1-3 | 1.3 | Influence of Microcars | 4 | 1.3.1 | Positive Impacts | 4-5 | 1.3.2 | Negative Impacts | 5-6 | Chapter 2 | Analysis of Current Solutions | | 2.1 | Target Group | 7 | 2.2 | Overview of Current Measures | 7 | 2.3 | Kenguru B1 | 8 | 2.4 | EQUAL | 9 | 2.4.1 | EQUAL's Entry System | 9 | 2.5 | Limitations of Current Measures | 10 | Chapter 3 | Micro+ | | 3.1 | Aim & Design Objectives | 11 | 3.2 | Independence | 12 | 3.2.1 | Laser Guidance | 12-14 | 3.2.2 | Friction Drive Module (FDM) | 15-16 | 3.2.3 | Ramp | 16-17 | 3.3 | Usability | | 3.3.13.3.2 | Modified Steering MechanismExpanding Width | 1819 | 3.4 | Summary | 19 | Chapter 4 | Evaluation of Ideas | | 4.1 | Methods | 20 | 4.2 | Effectiveness | 20-21 | 4.3 | Feasibility | 21 | 4.3.1 | Limitations | 21 | 4.3.2 | Solutions | 21-24 | Chapter 5 | Project Summary | | 5.1 | Summary of Project | 25 | 5.2BibliographyAnnexes | Future Directions | 25-2627-2829-44 | | | | | | | Chapter 1 Introduction 1.1 Project Aim This project aims to improve on......

Words: 7295 - Pages: 30

Laser Ignition System

...Fired Reciprocating Engines September 11 – 14 ,2005, Ottawa, Canada ICEF2005-1352 Laser Ignition - a New Concept to Use and Increase the Potentials of Gas Engines Dr. Günther Herdin/GEJenbacher GmbH & Co OHG Prof. Ernst Wintner/Technical University of Vienna DI Johann Klausner/GEJenbacher GmbH & Co OHG Josef Graf/Technical University of Vienna DI Martin Weinrotter/Technical University of Vienna Kurt Iskra/Technical University of Graz ABSTRACT Due to market demands aimed at increasing the efficiency and the power density of gas engines, existing ignition systems are rapidly approaching their limits. To avoid this, gas engine manufacturers are seeking new technologies. From the viewpoint of gas engine R&D engineers, ignition of the fuel/air mixture by means of a laser has great potential. Especially the thermodynamic requirements of a high compression ratio and a high power density are fulfilled well by laser ignition. Results of measurements on the test bench confirm the high expectations – with a BMEP of 1.8 MPa it was possible to verify NOx values of a non-optimized system of 30 ppm (70 mg/Nm³ @ 5 % O2) with very high combustion stability. In the meantime, GEJ can look back at 6 years of excellent experience and can see itself as the “technological leader” in the field of laser ignition. Despite this, considerable developmental steps are still necessary to adapt the laser ignition concept fully to desired objectives (especially costs). INTRODUCTION Good......

Words: 3937 - Pages: 16

Micro

...villages. Hence, it is easier to form groups that would follow a standardized procedure. This makes it easier to operate with the Grameen system in Bangladesh than in India. It is observed that the Grameen system is better suited for more densely populated areas. There are parts of India which are as densely populated as Bangladesh, and some of the Northern hill tracts, and some part of the Sundarbans, are fairly thinly populated. The population density in India is a little higher than 1/3rd that of Bangladesh. In the Grameen system, the groups avail micro-financial services from the Bank, while the SHGs are effectively a microbank carrying out their own savings mobilization and lending. The basic difference in the approaches of the Grameen system and the SHG model is that the former starts with microcredit and then graduates to micro-savings, while the SHG model is based on the concept of micro-savings leading to micro-credit. Thus, the SHG model is more sustainable from viability point of view. Though both the models are for the poor, yet Grameen system is more suited to the very poor category of people who may not have sufficient fund to generate the initial savings required in the SGH system. Unlike Bangladesh, India has a good network of commercial banks with almost 70% of the 80,000-odd bank branches located in the rural and semi-urban areas. Policies of the Government to make it mandatory for the banks to extend credit to the priority sector and also support......

Words: 388 - Pages: 2

Laser Torch

...MAJOR PROJECT LASER TORCH BASED VOICE TRANSMITTER AND RECEIVER CHAPTER -1 INTRODUCTION 1.1 ABOUT PROJECT LASER TORCH-BASED VOICE TRANSMITTER AND RECEIVER Using this circuit you can communicate with your neighbors wirelessly. Instead of RF signals, light from a laser torch is used as the carrier in the circuit. The laser torch can transmit light up to a distance of about 500 meters. The phototransistor of the receiver must be accurately oriented towards the laser beam from the torch. If there is any obstruction in the path of the laser beam, no sound will be heard from the receiver. The transmitter circuit comprises condenser microphone transistor amplifier BC548 (T1) followed by an opamp stage built around µA741 (IC1). The gain of the op-amp can be controlled with the help of 1-mega-ohm pot meter VR1. The AF output from IC1 is coupled to the base of transistor BD139 (T2), which, in turn, modulates the laser beam. The transmitter uses 9V power supply. However, the 3-volt laser torch (after removal of its battery) can be directly connected to the circuit—with the body of the torch connected to the emitter of BD139 and the spring-loaded lead protruding from inside the torch to circuit ground. The receiver circuit uses an npn phototransistor as the light sensor that is followed by a two-stage transistor preamplifier and LM386-based audio power amplifier. The receiver does not need any complicated alignment. Just keep the phototransistor oriented towards the remote......

Words: 8120 - Pages: 33

Micro

...equity holding by industrial undertakings, whether domestic or foreign, in the MSEs has been done away with and MSEs are defined solely on the basis of investment in plant and machinery (manufacturing enterprises) and equipment (service enterprises). Thus, the present policy on FDI in MSE permit FDI subject only to the sectoral equity caps, entry routes and other relevant sectoral regulations. The issue of de-reservation had been a subject of animated debate within government for more than twenty years. The Approach to the Eleventh Five Year Plan noted the adverse implications of reservation of products for exclusive manufacture by the MSEs and recommended the policy of progressive de-reservation. To facilitate further investments for technological up-gradation and higher productivity in the micro and small enterprises, 654 items have been taken off the list of items reserved for exclusive manufacture by the manufacturing micro and small enterprises in the last few years – reducing it to 21 at present. This has helped the sector in enlarging the scale of operations and also paved the way for entry of larger enterprises in the manufacture of these products in keeping with the global standards. Credit/Finance Credit is one of the critical inputs for the promotion and development of the micro and small enterprises. Some of the features of existing credit policy for the MSEs are: Priority Sector Lending: Credit to the MSEs is part of the Priority Sector Lending Policy of the......

Words: 507 - Pages: 3

Laser

...TERM PAPER LASER, ACTION, EINSTEIN THEORY OF LASER, TYPES, APPLICATIONS IN INDUSTRY & MEDICAL FIELD SUBJECT: CURRENT, ELECTRICITY & MODERN PHYSICS SUBJECT CODE: PHY-113 SUBMITTED TO: Dr. AMRITA SAXENA SUBMITTED BY: JAGDEEP SINGH SECTION: C7802 ROLL No.:RC7802A21 REG. No.: 10804440 CONTENTS • Acknowledgement • Introduction • Laser action • Einstein theory of laser • Types of lasers 1. Based on energy level 2. Based on the material used • Applications • Recent discoveries • Recent applications • References ACKNOWLEDGEMENT For the completion of this term paper I would like to acknowledge my respected teacher Dr .AMRITA SAXENA who was always worthily helpful to help me in my queries in different aspects. I would also like acknowledge my friends who helped me a lot in the completion f this and were always there at one call. JAGDEEP SINGH INTRODUCTION The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. Light is really an electromagnetic wave. Each wave has brightness and color, and vibrates at a certain angle, so-called polarization. This is also true for laser light but it is more parallel than any other light source. Every part of the beam has (almost) the exact same direction and the beam will therefore diverge very little. With a good laser an object at a distance of 1 km (0.6 mile) can be illuminated with a dot about 60 mm (2.3 inches) in...

Words: 1697 - Pages: 7