Micro holes machining process of copper sphere

MJ Series Jaw Crusher

MJ Series Jaw Crusher

MJ series jaw crusher is mainly used as a coarse crushing crusher. Its purpose is to crush rocks into smaller particle sizes for subsequent processing…

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MC Series Single-Cylinder Hydraulic Cone Crusher

MC Series Single-Cylinder Hydraulic Cone Crusher

MC series single cylinder hydraulic cone crusher is used in secondary and fine crushing operations. It is widely used in metallurgy, construction, highway,…

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ML Series Vertical Shaft Impact Crusher

ML Series Vertical Shaft Impact Crusher

Vertical shaft impact crusher is often used in the final crushing circuit. Due to the ability to produce fine-grained final products, ML series vertical…

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MD Series Multi-Cylinder Hydraulic Cone Crusher

MD Series Multi-Cylinder Hydraulic Cone Crusher

MD series multi-cylinder hydraulic cone crusher is used in the second and third stages of mineral processing and stone crushing, as well as the superfine…

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MF Series Fixed Shaft Circular Vibrating Screen

MF Series Fixed Shaft Circular Vibrating Screen

In order to eliminate the phenomenon of unbalanced vibration, unstable amplitude, on/off bounce, poor screening effect, and cracking of the screen box…

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MGD Series Vibrating Feeder

MGD Series Vibrating Feeder

MGD series vibrating feeder is designed for ultra-heavy working conditions and is suitable for feeding materials to primary jaw crushers, primary impact…

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MGB series hopper discharge feeder

MGB series hopper discharge feeder

MGB series hopper discharge feeder is mainly used for the uniform, quantitative and automatic control of under-silo feeding of bulk materials.…

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MZA/K Series Circular Vibrating Screen

MZA/K Series Circular Vibrating Screen

MZA/K series circular vibrating screen produced by Meilan has an axis-eccentric circular vibrating screen, which can be used for dry and wet classification…

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  • OBORTS Company, Opposite the residence of old General Mambou, Near Dragage, Bastos, Yaoundé, Cameroon
    Email: [email protected]

  • Deburring tools for the perfect finish made and supplied

    Deburring Tools, edge breaking, chamfering, thread deburring and tricky cross hole deburring. The deburring tools made and supplied by Moleroda cover a huge range and are both for automatic and manual deburring. Moleroda has noticed a change in precision engineering industry. Machining centres are getting more and more complex.

  • Ballizing, ball burnishing with tungsten carbide balls

    The results of burnishing balls are predictable and nearly foolproof. You can use it to size holes to tolerances of ± 0.0002″. This compares favorably to most reaming and grinding operations. Likewise, burnishing balls can finish a hole with a surface finish of 10 micro inch to a 5 micro inch tolerance.

  • Laser drilling - Wikipedia

    Laser drilling is the process of creating thru-holes, referred to as “popped” holes or “percussion drilled” holes, by repeatedly pulsing focused laser energy on a material. The diameter of these holes can be as small as 0.002” (~50 μm). If larger holes are required, the laser is moved around the circumference of the “popped” hole until the desired diameter is created; this

  • Etch rates for micromachining processing-part II

    structural material, underlying material, and etchant for micro-machining. Table I summarizes the etches tested, abbreviated names for the etches, and the target materials for each. Table II lists etch rates of Si,Ge, SiGe, and C in the SI units of nm/min (not /min as in …

  • Influences and Optimization of Electrical Discharge

    Mustafa Ay & Ulaş Çaydaş, studied micro-electrical discharge machining (EDM) drilling process of Inconel 718 nickel-based Super alloy with multi performance characteristics The hole taper ratio (Ht) and hole dilation (Hd) were the measured performances [24].Krishna Kumar Saxenaa, n, Anand Suman Srivastava b analyzed that

  • Recommended machining parameters for copper and copper …

    excellent machining properties of these copper-zinc alloys is so well-known that they are often used as benchmarks for describing the machining properties of copper and copper alloys Machining copper alloys is considerably easier than machining steels or alumin-ium alloys of the same strength (see Figure 1). This is reflected in the signif-

  • Micro-hole Maching of Copper Using the Electro-discharge

    May 01, 2001· This paper describes micro-hole machining of a copper plate using the electro-discharge machining (EDM) process. Tungsten carbide was selected as the material for the electrode and compared with a copper-electrode. A precision centreless grinding process was employed to grind the electrode down to the desired diameter.

  • UNIT 5 MODERN MACHINING METHOD Modern Machining

    (e) Fine holes can be drilled easily and accurately. (f) Appreciably high value of MRRR can be achieved as compared to other non-conventional machining processes. Disadvantages and Limitations of EDM Process There are some limitations of EDM process as listed below : (a) This process cannot be applied on very large sized workpieces as size

  • Electrical Discharge Machining ( EDM ) Design

    Manufacturing Knowledge Menu EDM Manufacturing Services EDM Manufacturing Equipment. Electrical Discharge Machining, EDM is one of the most accurate manufacturing processes available for creating complex or simple shapes and geometries within parts and assemblies. EDM works by eroding material in the path of electrical discharges that form an arc between an electrode tool and the work piece.

  • On Geometrical Characteristics of WC-Co Round Cavities

    machining processes. As for that, such materials are better machined by non-conventional manufacturing processes such as ED-Machining, once its material removal principle works through thermal input into the material, which inherently is independent of material mechanical strength4. WC-Co composite material is composed by Cobalt as

  • Experimental study on micro electrical discharge machining

    Jul 06, 2017· With the development of micro electro mechanical system (MEMS), the application of micro components is becoming increasingly wide. Micro electrical discharge machining (micro EDM) is one of the most effective manufacturing processes for micro components. During past few decades, some innovative methods for improving micro EDM performance have been proposed.

  • Precision Deburring - Comco Inc

    Precision deburring is the removal of sharp particles or edges often left on parts as a result of machining operations. MicroBlasting delivers pinpoint accuracy that allows you to attack a burr at its root without causing dimensional changes to the part. YouTube. Comco Inc. 236 subscribers.

  • Recent Researches in Micro Electrical Machining Request PDF

    Micro-electrical discharge machining (micro-EDM) is a well-established process for the machining of any electrically conductive hard and brittle material, but due to very small feature size and

  • Fabrication of an oil–water separation copper filter using

    Feb 29, 2016· In this study, oil and water are successfully separated using a copper filter that is fabricated using only laser beam machining. Even though copper is hydrophilic and recast copper material, which inevitably results during laser beam machining, is super-hydrophilic, the filter can prevent the water from penetrating and allow oil to flow based on surface tension of the liquids at the hole …

  • Electro Discharge Machining

    Electro Discharge Machining (EDM) is an electro-thermal non-traditional machining process, where electrical energy is used to generate electrical spark and material impression of the hole or geometric feature machined (d) The tool has to be electrically conductive as well. • Electrolytic oxygen free copper • Tellurium copper – 99%

  • Micro-hole Maching of Copper Using the Electro-discharge

    This paper describes micro-hole machining of a copper plate using the electro-discharge machining (EDM) process. Tungsten carbide was selected as the material for the electrode and compared with a copper-electrode. A precision centreless grinding process was employed to grind the electrode down to the desired diameter.

  • Machining of Inconel 718 Alloy using EDM-A Review – IJERT

    Apr 15, 2017· Bozdanaet al. [21] presented a comparative experimental study on machining and surface characteristics of through and blind holes (Ø1 mm) produced on aerospace alloys of Ti-6Al-4V and Inconel 718 by fast hole rotary EDM process using tubular hollow copper and brass electrodes.

  • What Causes Solder Balls During Hand Soldering?

    Moisture is a contributor to solder balls. Trapped moisture, when ramped up to solder temperatures creates steam per se, pressure and out-gasses. Solder gets expelled from the solder joint, displaced, creating a ball. Keep in mind when using aqueous cleaning of PCBA's that they should be baked out prior to hand assembly or thru-hole.

  • Machining nickel alloys

    machining. Nickel alloys are classified into different categories according to their relative machining behaviour as shown in Table I. A different set of machining conditions is applicable to each category, and the first step for successful machining is for the programmer/machinist to identify the applicable category for the alloy to be machined.

  • (PDF) Electrical Discharge Machining of Micro Holes on

    In [23], the impact of machining process parameters (peak current, pulse-on-time, frequency, and spindle rotation speed) on the geometrical characteristics (overcut and taper rate) of micro-holes

  • Machining Hole-making Process, Opertaions, Tools, Machines

    Hole-making is a class of machining operations that are specifically used to cut a hole into a workpiece.Machining, a material removal process, creates features on a part by cutting away the unwanted material and requires a machine, workpiece, fixture, and cutting tool.Hole-making can be performed on a variety of machines, including general machining equipment such as CNC milling …

  • Fabrication of MEMS with Different Techiniques & Advantages

    LIGA Process. 1 st step involves the deposition of a layer of Titanium or copper or Aluminum on the substrate to form a pattern.; 2 nd step involves the deposition of a thin layer of Nickel which acts as the plating base.; 3 rd step involves the addition of an X-ray sensitive material like PMMA (polymethyl metha acrylate).; 4 th step involves aligning a mask over the surface and exposing the

  • 5 Things You Need to Know About OD/ID Concentricity

    Apr 22, 2020· How to Check Concentricity of Two Diameters (and Other Factors in Tube Sourcing) The issue of how to check the concentricity of two diameters often comes up in tube sourcing.It involves determining the wall thickness — the measurement between the outside diameter (OD) and inside diameter (ID) of a tube — at different points to see how constant it is in relation to a central axis.

  • EDM Leader in Design & Manufacturing Saturn Industries

    Sep 17, 2020· Saturn Industries specializes in Micro EDM to meet the growing demand for precision Micro holes and Micro forms in small and miniature parts. From a single critical component to multiple part runs, Saturn provides precision workmanship with quick turnaround to meet your production deadlines. Discover the possibilities of micro machining.

  • Micro-hole Maching of Copper Using the Electro-discharge

    May 03, 2001· Int J Adv Manuf Technol (2001) 17:715–719 2001 Springer-Verlag London Limited Micro-hole Machining of Copper Using the Electro-discharge Machining Process with a Tungsten Carbide Electrode Compared with a Copper Electrode M-G. Her and F.-T. Weng Department of Mechanical Engineering, Tatung University, 40 Chung-Sang North Road, 3rd Sec., Taipei, Taiwan This paper describes micro-hole

  • Recommended machining parameters for copper and …

    excellent machining properties of these copper-zinc alloys is so well-known that they are often used as benchmarks for describing the machining properties of copper and copper alloys Machining copper alloys is considerably easier than machining steels or alumin-ium alloys of the same strength (see Figure 1). This is reflected in the signif-

  • Electrochemical Machining (ECM): Process, Working & Diagram

    May 12, 2020· Application of Electrochemical Machining. This process is used to machine complex cavities in high strength materials, particularly is the aerospace industry for mass production of turbine blades, jet-engine parts, and nozzles. It is also used to machine forging-die cavities (die sinking) and to produce small holes. Can be used as a deburring

  • MACHINING OPERATIONS AND MACHINE TOOLS

    • Turning – a machining process in which a single-point tool remove material from the surface of a rotating work piece. (Lathe) v. MRR vfd f L T = For a through hole. For a blind hole. r m. f d T = A. t. d. f(in/rev) 9. Twist Drill and Drilling Operations. From Kalpakjian and Schmid (2003) 10. Machine Tool for drilling • Drill press

  • Study of Surface Modification by Electrical Discharge

    The ~ urface ill odifIcation process by ~DM mixed Ii powder is called SMET. In addition, the specimen was machined after SMET to reduce the surface roughness with the finishing EDM conditions defmed Table 1. 3.2 Machining of micro-hole SMET was first tested for machining a micro-hole. The electrode material was copper in the shape of a rod

  • What is chemical etching? How does chemical etching work

    Mar 14, 2017· Chemical etching is a high precision subtractive manufacturing process that uses baths of temperature regulated etching chemicals to selectively remove material to produce high precision metal parts in any desired shape. Compared to other micro manufacturing techniques, such as Stamping, EDM, CNC, Laser Cutting, and Water Jetting, Chemical

  • Bal-tec - Ball Material Selection

    Chrome steel balls can be modified by grinding with conventional abrasives. Holes, shapes and threads can be generated by the Electrical Discharge Machine (EDM) process. 51100 steel is a very low alloy chrome steel that was widely used during WW II as a means of conserving chromium.

  • Electric discharge machining by shaikh mohd aslam

    Dec 11, 2014· Electric discharge machining by shaikh mohd aslam. 1. EEDDMM. 2. The tool (electrode) usually acts as a cathode and is immersed in a dielectric fluid. DC voltage (~300V) is applied in modulated pulses (200-500K Hz). The dielectric breaks down (sparking at around 12,000 deg F) when gap is small. The sparks erodes the workpiece in the shape of

  • MICRO MACHINING PROCESSES

    introduction to micromachining , v.k.jain (editor) published by narosa publishers, n ew delhi (2009). (second edition) micromanufacturing processes by v. k. jain (editor), crc press. advanced machining processes by v.k jain , allied publishers, new delhi. non-conventional material removal processes by v.k.jain, block-4, indira gandhi national open university (ignou), new

  • Investigation of a Liquid-Phase Electrode for Micro

    Micro-electro-discharge machining (μEDM) plays a significant role in miniaturization. Complex electrode manufacturing and a high wear ratio are bottlenecks for μEDM and seriously restrict the manufacturing of microcomponents. To solve the electrode problems in traditional EDM, a µEDM method using liquid metal as the machining electrode was developed.

  • Ultra-precision machining in Japan - ScienceDirect

    Jan 01, 1979· By way of example, Fig 7 shows the surface profile of a copper Table 1 Spindle bearing dimensions Spherical Journal Diameter, mm 70 22 Length, mm 60 27 Clearance,/lm 12 18 Feed hole 0.3 0.3 diameter, mm Number of 12 12 feed holes specimen machined on the apparatus.

  • Pros and Cons of honing process in grinding SHEW-E STEEL

    Mar 17, 2020· When honing the inner hole, the roundness and cylindricity can reach 0.005 ~ 0.01mm, and the surface roughness value Ra can reach 0.05 ~ 0.2m. Its machining efficiency is similar to that of grinding and can replace part of grinding process, but it can't improve the position accuracy. Low requirement for machine tool precision.

  • Advantages and Disadvantages of Copper and Graphite

    Jan 01, 2002· A 12" x 7" x 2 3/4" piece of copper weighs 75 pounds, whereas a piece of graphite the same size is 11 pounds. "The bottom line is use what you think will work best in your shop with the equipment that you have available," Haley continues. "If some electrodes are beyond your machining ability, have someone make them for you.

  • (PDF) Study on micro-machining by Micro-WEDM

    Abstract. Micro wire electrical discharge machining (Micro-WEDM) has proved to be a versatile micro-machining technology to produce complex part. Therefore, a Micro-WEDM setup is developed to