Find machined graphite including EDM graphite, graphite composite, graphite machining centers and more. From graphite tubes, graphite fixtures, carbon graphite to graphite rods, you will find the machined graphite product you need. Use the time-saving Request for Quote tool to submit your inquiry to all the machine graphite manufacturers and suppliers you select.
Weaver Industries has offered quality machined graphite parts, graphite products, graphite fixtures and carbon graphite. We provide control at all stages of the manufacturing process, from acceptance of an order through product completion. We can handle your one-of-a-kind projects.
Industrial Graphite Sales provides knowledge and experience in graphite machining, graphite machine work and carbon graphite. Specializing in synthetic graphite products, we are a leading supplier of quality machined graphite for a number of high-temperature-type applications.
Becker Brothers Graphite is a premier manufacturer of machined graphite parts and carbon graphite products, including graphite tubes, graphite shields and graphite heating elements. Complete graphite machining and graphite treatment facilities are available. For more information, please call today!
Built on over 100 years of experience, GrafTech’s Advanced Graphite Materials division manufactures some of the highest quality, most innovative machined graphite products using the best materials. Very few shops can machine graphite blocks as large as we do. We can handle ANY CAD system used today.
Bar-Lo Carbon Products provides fast delivery, high quality, cost savings and dependability as a graphite machining center. We are also precision machiners of carbon and ceramic. We produce graphite rods, fixtures, molds, jigs and crucibles to exact specifications and will deliver to you immediately.
Machined graphite is formed for use in a wide variety
of manufactured parts benefiting the automotive, aerospace, semiconductor,
chemical, metallurgical, nuclear and electronics industries. It is usually
the result of a copper and pure graphite composite, creating a material
that is both structurally sound and reliable. Copper graphite is expensive,
but it has improved conductivity and strength compared to pure graphite.
Other metallic graphite mixtures may be used but may prove less effective.
In order to understand the formation of machined graphite, it is important
to know that pure graphite is of two different types, natural and synthetic.
Natural graphite is one of four forms of carbon, and manufacturers use
it to produce machined graphite. It is combined with tar pitch and petroleum
coke during heat treatments to make synthetic graphite, which is the type
that is actually used in machined graphite parts. The heat enables the
machined graphite to increase its strength, making it one of the easiest
electrode materials, and providing exceptional shock resistance as well.
As an electrode, machined graphite is used in EDM to create parts. Because
the strength of graphite increases as the temperature rises, it is preferable
to most metals in particular applications. Aside from its strength, graphite’s
conductivity, flexibility and chemical resistance add to its favorability.
Machined graphite can refer to one of three different processes, including
extruded, compression molded and isostatically pressed. These processes
each create unique grades of graphite that are particularly suited for
certain parts and components. Extruded and isostatically pressed graphite,
distributed in either round or rectangular blocks, are used mainly in
manufacturing parts, such as rods, tubes and fixtures. Compression molded
graphite is of high demand in the sporting goods industry and is used
primarily in the production of golf clubs and fishing poles. Graphite
in a variety of forms also serves as a pigment, UV shield, lubricant or
conductor of electricity in numerous products.
The manufacturers of machined graphite have a wide range of capabilities
and work with customers to handle their machined graphite needs. Manufacturers
offer custom manufacturing and are capable of aiding in the design of
the part as well. Graphite if produced in bulk quantities for future shaping,
or as specific components and already finished parts, whichever suits
the customer’s needs. Manufacturers also can assist in the recycling
of obsolete graphite scrap, parts or particles. Due to heightened environmental
restrictions and regulation, it is best to utilize the aid of a graphite
manufacturer in any recycling choices. Another safety issue occurs when
graphite dust is present in the work place. It is considerably hazardous
if it combines with machine oil; this mixture can destroy the accuracy
of machines.
Carbon graphite
is used in mechanical applications due to its strength and hardness.
Carbon graphite has a lower level of heat resistance and conductivity
than graphite.
Extruded graphite
has relatively fine grain size, and has good mechanical, electrical
and thermal properties, with a preferential grain orientation and low
ash content. Density, mechanical strength and oxidation resistance can
be improved by means of further impregnation.
EDM graphite
is an important component of electrical discharge machines. The use
of graphite causes less wear and tear on the EDM electrodes and removes
metal quickly and efficiently.
Graphite bearings
are often used in load capacity systems along with graphite bushings.
Graphite composites
are beneficial because they are lightweight, yet strong and durable.
Graphite composites are used in the automotive, airplane, and aerospace
industries to provide structural support and reinforcement.
Graphite crucibles
are used to store materials and samples during fusion and other mixing
processes.
Graphite design produces many products from machined graphite.
Graphite electrodes
are used in ladle furnaces and electric arc furnaces. Graphite electrodes
are advantageous for their high conductivity and performance under high
temperatures.
Graphite fixtures
consist of packaging fixtures and sealing fixtures. Graphite fixtures
are used in the automation and semiconductor industries.
Graphite machining is the process that produces parts out of synthetic graphite materials.
Graphite rods
are used in the fiber optics and semiconductor industries to produce
a wide variety of machine components, including dies, spindles, and
chucks.
Graphite tubes
are used in furnaces because of graphite’s low heat sensitivity.
Graphite is also used in the production of fluxing tubes used in the
metal manufacturing industry; other industries using graphite tubes
include chemical and scientific industries.
Isostatically pressed
graphite is an especially fine grain, dense, isotropic graphite,
which can be produced in large dimensions.
Machined Graphite Terms
Angstrofine –
The most advanced type of EDM graphite. Angrostofine is used when fine
detail and a smooth finish is required.
Billet – An uncut block of graphite
produced by the manufacturer that ranges from two to seven square inches.
A billet is commonly used for longer projects.
Breakthrough – The exit end
of a through-hole cavity which occurs at the moment of completion.
Carbon – An abundant element
of natural occurrence, often used instead of the word graphite. Graphite
is a type of the element carbon.
Coke – A processed form of coal.
Processed coke burns more steadily and is stronger than metallurgical
coke.
Composite – Two or more materials
combined. An example is copper graphite, which is a metallic/carbon composite.
EDM – Electrical Discharge Machining;
a process in which metal is removed through burning or erosion instead
of through cutting.
Electrode – A tool used in EDM
which mirrors the desired shape. The electrode must be made out of materials
that can carry an electric current.
Filler – The carbonaceous particles
in manufactured graphite comprising the base aggregate in an unbaked green-mix
formula.
Flash – Thin fin or web of metal
extending beyond the confines of the casting, usually along the joint
line as a result of poor contact between cope and drag molds.
Grain – Referring to a region
in a carbon or graphite body that is identifiable as being derived from
a particle of filler.
Horn Gate – Curved gate in the
shape of a horn arranged to allow entry of molten metal at the bottom
of the casting cavity.
Isotropic – Having uniform properties
in all directions. The measured properties of an isotropic material are
independent of the axis of testing.
Machined – To shape, cut or
finish a product by the use of a machine.
Premium Graphite – A material
with a particle size of five microns or less.
Transducer – Changes one form
of energy into another; in EDM it is used to change electromagnetic force
into mechanical force for the machining of graphite. Although there is
sound produced when machining graphite, it is too high pitched for most
human hearing.
Trim Die – Die used for shearing
or trimming a workpiece.
Workpiece – Material that is
being machined. The material will continue to be operated on until it
is a replica of the original.
