Chen and yuwen zhang1 department of mechanical and aerospace engineering university of missouri columbia, mo 65211, usa abstract a twodimensional axisymmetric transient laser drilling model is used to analyze the effects of laser beam diameter and. Optimization of laser deephole drilling of inconel 718. Pdf laser drilling for medical device manufacturing researchgate. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Laser drilling can be performed on a variety of materials with a high degree of precision and definition. Laser drilling was not the first kind of laser drilling process that was used and instead found itself come about as more of a development from the laser cutting process. Laser drilling is the process of repeatedly pulsing focused laser beam on a material to create thruholes. For example, laser drilling and laser cutting are often used interchangeably. Gas technology institute gti has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Yang and yusoff md noor school of mechanical and production engineering, nanyang technological university, nanyang avenue, singapore 2263 industrial summary the use of a.
However, larger fibers are less desirable from a drilling point of view because they are more likely to cause the drill bit to deflect, resulting in decreased hole 24. Drilling blind holes in surgical needles for the medical device industry. Laser drilling of fuel injection components has been under development since the early 1990s. This can be done on a small scale, such as the drilling of very small holes in machine parts, or on a larger scale, such as larger holes in materials that do not hold up well under normal drilling techniques. Since 1997, gti then as gas research institute gri has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. The needle drill system na was developed to drill precise blind holes using a single pulse with an aspect ratio of up to 1. Dmc stitching tools enables use of galvo scanners for drilling and linear stage translation between holes. Pulse by pulse, the laser ablates material from the hole through the process of melting and vaporizing. Laser drilling is a highly adaptable, versatile and reliable micromanufacturing process used in a broad range of industries. The quality of a hole drilled through a printed circuit board is measured by its ability to interface with the following processes. Pdf study on laser microdrilling process semantic scholar. Different process gases were investigated to minimize debris formation and reduce the recast layer thickness.
Below we have explored in depth the process of laser drilling, how it came about, and just why. When laser drilling is used for via formation, other expensive process steps like resist coating, uv exposure and lithography can be completely avoided. Fasheloum, mohammed 1997 investigation of drilling. When a borehole is drilled, different types of sedi ment and rock layers can be encountered. When drilling under subsurface tanks or subsurface landfills, the accuracy of laser drilling will allow for a substantial safety of margin when angled drilling or directionally drilling underneath areas of high risk. Laser drilling is the process of creating thruholes, referred to as popped holes or percussion drilled holes, by repeatedly pulsing focused laser energy on a material. The drilling rig by itself does not cause either successful well outcomes or dry holes. Journal of materials processing technology, 37 1993 741 757 741 elsevier optimization of laser deephole drilling of inconel 718 using the taguchi method s. Manufacturing process efficiency and quality as well as operation cost are very important factors for companies to survive in the competitive environment. Laser drilling is a noncontact process that can be used to produce microholes in almost any material.
Emerald 160 series delivers a new level of advanced uv drilling performance for todays most challenging ic substrate and assembly applications. Laser drilling has ability to produce small diameter holes with. Analysis of the laser drilling process for the combination. The laser drilling process involves the use of an infrared laser of surgical grade at a wavelength about 1064 nm to bore very fine holes less than 0. Laser drilling is a widelyused manufacturing process especially in high value manufacturing product components such as jet engine and gas turbine. Due to the modular design of the drilling robotic workcells, a wide choice of. Laser drilling is a flexible process that can be employed for both front end and back end tsvs. This micro size holes are easily drilled by lasers. Laser drilling is a highspeed process that is used to produce high aspect ratio holes of various sizes for critical applications, such as cooling holes in aeroengine and gas turbine components. However, poor quality of drill has been rise as critical issues in industry due to the improper setting of drilling parameters. Thermal analysis of laser drilling process springerlink. Copper direct drilling that is commonly performed in the hdi board manufacturing process. Pdf single pulse drilling of copper foils and coppercoated dielectric circuit board. Innovative laser processing and drilling techniques for future.
One of the process in stent manufacturing is hole drilling of the tube holder. However, this was over half a century ago, and since then laser drilling has changed to become a highly efficient form of laser process in. Percussion laser drilling is a focused beam of firing pulses energy at a single location on a workpiece. No casing is ordinarily required during drilling because the drilling fluid forms a clay lining or mud cake or the wall of the well by filtration. Powered by orbotechs innovative multipath technology, this unique series of uv laser drilling solutions provides bestinclass, highspeed precision drilling. Drilling is a cutting process to make hole of circular cross section by using drill bit and it is one of the important machining processes having vast application. Laser drilling is the process of creating holes both large and small in a variety of different materials. Alac05 optimization of the laser drilling process for fuel. The shotfirer must understand the importance of straighthole drilling and drilling errors. The process of micro drilling using drill bits is used for materials that have good machinability. Drilling mud plays an essential role in the drilling process. In laser percussion drilling, a series of laser pulses with specified energies and durations irradiate the workpiece surface to gradually heat, melt, and vaporise material until a hole with required depth and diameter is achieved. Innovative laser processing and drilling techniques for.
In reverse circulation, drilling fluid usually water or very thin mud flows down the annulus, up the. The bailer is then used to remove the slurry and this process is repeated. We have access to different types of manual or cnc drilling machnes which can drill holes of every size and in every material, quality and quantity you might need. When laser drilling is used for via formation, other expensive process steps like resist coating, uv exposure and lithography can be. Drilling process is effect by the size and tran sient nature of the surface plasma, since the plasma partially absorbs the incident radiation and acts like a heat source contributing to the drilling process. Pdf despite its proven capability in drilling small holes for various industrial applications, laser drilling is not being. Laser drilling in oil and gas industry posted on may 3, 2016 december 15, 2018 by knowledgeproficiency posted in uncategorized the basic conventional method of drilling has always been more or less same in the last 150 years since the first oil well was drilled. Effects of beam size and pulse duration on the laser drilling process nazia afrin, pengfei ji, j. Pulsed lasers effectively complete this work by depositing very small, finite amounts of energy into a material, resulting in extremely precise and reproducible material removal. Ramping of pulse energy during the drill cycle was. Laser drilling services alaser precision laser cutting. Defects of percussion drilling trepanning trepanned laser drilling is a method used to remove a cylindrical core, or circular disc from a substrate. Dmc laser machining software allows easy preparation and control of laser drilling processes.
This drilling is a blind via process where a laser penetrates a. With the benefits of speed, accuracy, cleaner cuts, and less debris not to mention reduced mechanical stress on delicate components laser drills offer huge advantages for electronics manufacturers. The purpose of this study are to study the possibilities of low power laser on drilling polymeric materials and to identify the optimum parameters in order to obtain a good. The process requires simple set up and is characterized by shorter cycle durations. In this process, the laser beam melts and evaporates the material. Laser drilling is just one of a number of processes that our fiber laser range is designed for. Laser drilling process is highly accurate and consistent results. Concept and realization of a highrate laser drilling process reaching for ten thousands holes per second and beyond. Rotary technique operation is more like a common hand held drill, rotating. Pdf high peak power lasers have been used for years for ablating matter. Their main application is the production of medical needles with a productivity rate of up to 5 needles per second. Many of the laser processes bear striking similarities, and it can sometimes be difficult to easily distinguish between them. Complex hole patterns can be created using recipe flow tools. To drill through all these different layers a range of man ual drilling.
Laser drilling hylax technology laser solution provider. Advancement on drilling technology in petroleum industry 1 1 introduction even at the beginning of the 21st century, the petroleum industry is yet to overcome some major problems it. In this adapted machine tool, the singlelip deep hole drilling process is designed for a tool diameter range from d 0. Operation of the physical drilling rig represents the middle step. Find here online price details of companies selling laser drilling machine. Laser microdrilling can be used to produce microholes in any material. Laser beam drilling by laser radiation holes can be drilled with diameters ranging from less than one micrometer to several millimeters while maintaining the. Lazar, year2011 there are many situations when a classic drilling process is not worth to be used even the material to be machined is too hard, or the. We work closely with you to customize our laser manufacturing and postlaser processing to match your unique drilling needs, optimizing applications including. Laser drilling is the process of drilling holes using lasers. Our highresolution laser drilling process can create holes and orifices with a diameter as small as. Laser in industry laser drilling welding cutting 2. Drilling by machine is an expensive process, and boreholes require professional expertise for both their design and their construction. To maximize utilization of the fiber laser source, the drilling workcell can.
The properties of the drilling fluid are such as to provide adequate support for the wall of the hole and are usually viscous mixture of water and bentonite. This increases the material volume in the drill hole, and a high vapor pressure is created. In this paper we discuss the laser process optimization including laser type and motion control solutions. Of equal or greater importance in the process are activities and decisions immediately preceding and following rotary rig operation. In recent years has been applied in gasoline injector, diesel injector and fuel filter production. Drilling and well construction, chapter 6, geothermal. Laser drilling process is noncontact process no tooling wear or breakage, minimal material distortion. Laser drilling is performed contactfree, and thanks to extremely small optical systems, drilling is possible at locations that otherwise would be very difficult to reach. Mathematical modelling of multiple pulsed laser percussion drilling date. Pdf laser drilling of copper foils for electronics applications. The smallest, repeatable hole diameter is about 50% of. Application of laser drilling in tsvs has certain advantages. Some holes are thruholes, used for creating things such as aircooling vents, while other holes are nothing more than small dents in a material to roughen it up for coating and gluing purposes.
Current drilling technologies will obtain a soil sample every five feet as. In laser drilling process, the material removal involves with evaporation at the surface, liquid ejection, and solid heating. Rear side contacted solar cells enlarge the solaractive surface and in this way cell efficiency. Laser drilling is increasingly replacing mechanical drilling methods. However, liquid ejection vanishes for the lasers with the pulse length within the rage and higher than the nanoseconds. For optoelectronic packaging applications through glass vias tgvs are an important technology for thermal and electrical connections. It is one of the few precision metal technologies that can produce highaspectratio holes, which meet many industrial demands that cannot be achieved by other technologies. For the production of deep holes with small diameters different manufacturing processes can be used. However the laser beam should not impinge on the metal stent itself as it will damage it. Water well installation university of asia pacific. In this context singlelip deep hole drilling sld, laser.
458 1446 240 911 512 563 1187 810 950 24 1147 1334 366 613 559 1290 1060 1008 346 203 1312 1317 30 977 66 763 1185 1167 531 614 1025