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CapabilitiesDie Casting Services


DIE CASTING SERVICES

HIGH QUALITY DIE CAST METAL PARTS

See How It Works
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START YOUR DIE CASTING QUOTE HERE

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Start A Die Casting Quote
  All uploads are secure and confidential.Xometry's Instant Quoting Engine is
covered by US Pat. Nos. 11,086,292 and 11,347,201. Other patents pending.

What is Die Casting?

Die Casting With Xometry

Types of Die Casting

Materials

Finishes

Applications

Advantages & Disadvantages

Why Xometry?


New!


DIE CASTING PROCESS

Die casting is the manufacturing process of choice when producing high volumes
of relatively complex metal parts and is widely used due to its versatility,
reliability, and accuracy. Die casting eliminates all or most secondary
operations needed to make a metal part; however, post-machining is common to
meet tighter critical-to-function tolerances. Die cast parts can also be
post-processed in any finish their respective CNC machined counterparts can.


Like injection molding, die casting requires the fabrication of a mold
tool--called a die--that can have one or multiple cavities. The process works
for softer alloys, including aluminum and zinc alloys, due to their relatively
lower melting temperature. Die casting works by injecting molten metal into a
die cavity, which takes the shape of the part and hardens into place before
removal. Depending on the project scope, die casting can be low- or
high-pressure, using a ladle or plunger to deposit metal. Die casting can
produce highly complex, tight-tolerance parts in a repeatable manner at very
high production volumes. Modern die casting methods such as squeeze casting and
semi-solid metal casting produce high-quality parts for nearly every industry.
Die casting companies will often specialize in casting aluminum or zinc, with
aluminum making up roughly 80% of die cast parts.


Our project managers and experts personally review and manually quote each die
casting project to ensure we meet your unique needs while providing a fast and
easy manufacturing experience. Learn more about the process and our capabilities
in the sections below.




DIE CASTING WITH XOMETRY


START A QUOTE

Upload your files to the Xometry Quote Engine and configure your project. Our
team will consult with you to ensure your specifications, lead time, and price
fit your project needs. We will provide a DFM report for approval before kicking
off tooling.


SAMPLE APPROVAL

Once your project is kicked off we will build a high-quality die. After the
tooling is created we will send out part samples, called T1s, for approval.


PRODUCTION BEGINS

Once satisfied with your samples, we move forward with production and deliver
the parts. Rest easy knowing Xometry is handling supplier management and
logistics throughout the process. You own your tooling and can easily re-order
as needed to meet demand.


GET FLEXIBLE PAYMENT OPTIONS FOR THE PARTS YOUR BUSINESS NEEDS.

Learn More




DIE CASTING TYPES AVAILABLE FROM XOMETRY

Xometry partners with die casters that utilize the latest die casting technology
to deliver high-quality, on-demand parts. Our offering focuses on the two
leading types of die casting: hot chamber casting and cold chamber casting. Both
types can produce parts with complex geometry, close tolerances, and robust
mechanical properties.



HOT CHAMBER DIE CASTING


Also known as gooseneck casting, the hot chamber die casting process is the most
popular die casting process. It is optimal for working with lower melting point
alloys such as zinc, magnesium, and lead. A holding pot is filled with metal and
heated with hot chamber die casting until molten by an attached or built-in
furnace. A feature of the hot chamber system referred to as the gooseneck forms
a holding chamber within the pot and a nozzle-like pathway that connects to the
injection cavity of the fixed half of the die. A plunger that sits above the
chamber allows it to fill with molten metal from the holding pot. When the
chamber is loaded, the plunger lowers and forces molten material up the
gooseneck into the die cavity. The mold is held together under pressure while
the metal cools and solidifies in the mold. Once the metal is cool enough, the
dies open, and the casted piece ejects via ejector pins.



COLD CHAMBER DIE CASTING


With the cold chamber die casting process, the chamber remains at room
temperature and does not have a holding pot of molten metal. Metal is melted in
a separate furnace and deposited into the shot chamber through a pouring hole by
hand with a ladle. In cold chamber die casting, the mold is connected directly
to the shot chamber and does not utilize a plunger system. Instead, a ram forces
molten metal into the mold and held under high pressure while the metal
solidifies. This type of die casting is suitable for comparatively higher
melting temperature materials such as aluminum.




DIE CAST METAL MATERIALS

Several different metal materials are available to choose from when
manufacturing using die casting. The material you choose will depend on your
intended use for the product. For instance, cast aluminum parts are common in
aerospace or automotive applications where corrosion resistance and weight
reduction are essential factors. You can learn more about the main types of die
casting materials we offer in the sections below. If you have a specific
material request, just let us know!



ALUMINUM DIE CASTING


Aluminum alloys are the most widely used for die cast parts. Aluminum die
casting suppliers benefit from the total recyclability of the material and its
ease of use. Due to the comparatively higher melting point, aluminum die casting
may require a cold chamber casting process. Engineers use cast aluminum parts
primarily for their great strength to weight ratios, dimensional stability, and
diverse finishing options. Some of the other common characteristics of cast
aluminum alloys are:

 * Withstand high operating temperatures
 * Corrosion Resistance
 * Good stiffness
 * High thermal and electrical conductivity


Engineers and designers can choose from a wide range of alloys for their
aluminum casting parts. Xometry offers the most popular aluminum die casting
alloys, including:

 * A356.0
 * A360.0
 * A380.0
 * A383.0 (ADC12)
 * A413.0



ZINC DIE CASTING


Zinc is the easiest to cast material among the die casting metals and is
typically used in hot chamber processes. Molten zinc has exceptional casting
fluidity and a lower melting point. Its strength and stiffness allow it to
produce parts with thinner walls and highly detailed features and maintain tight
tolerances. The low melting point of die casting zinc alloys means the casted
parts cool off and solidify more quickly, which results in the fastest
production rates of the die casting materials. Zinc is an all-around
well-performing material due to its balance of mechanical and physical
characteristics, which include:

 * Impact strength
 * High hardness
 * Great stability
 * High-quality surface finish and easily plated
 * Low melting point


Xometry offers the most popular types of Zamak and ZA die casting zinc alloys.
More specifically, those alloys include:

 * Zamak 2 (ZA-2)
 * Zamak 3 (ZA-3)


Available Die Casting Finishes
Standard (As-Cast)

Zinc and zinc-aluminum parts can be left as-cast and retain reasonable corrosion
resistance. Aluminum parts must be coated to achieve corrosion resistance. Cast
parts are typically broken away from the casting sprue, leaving rough marks at
the gate locations. Most castings will also have visible marks left by the
ejector pins. The surface finish for as-cast zinc alloys is commonly 16-64
microinch Ra.

Bead Blasted

The part surface is left with a smooth, matte appearance.

Anodized (Type II Or Type III)

Aluminum is typically anodized. Type II anodizing creates a corrosion-resistant
oxide finish. Although suppliers can anodize parts in different colors, the
surface of a die cast part does not facilitate a cosmetic finish with anodizing.
Type III is a thicker finish and creates a wear-resistant layer in addition to
the corrosion resistance seen with Type II. Anodized coatings are not
electrically conductive.

Powder Coating

All die cast parts can be powder coated. This is a process where powdered paint
is electrostatically sprayed onto a part, then baked in an oven. Powder coating
creates a strong, wear- and corrosion-resistant layer that is more durable than
standard wet painting methods. A wide variety of colors are available to create
the desired aesthetic.


Wet Painting

All die cast parts can be wet painted in a wide variety of paint formulations
and colors.

Plating

Die cast parts can be plated with electroless nickel, nickel, brass, tin,
chrome, chromate, Teflon, silver and gold.

Chemical Film

Suppliers can apply a chromate conversion coat to protect aluminum from
corrosion and improve the adhesion of paints and primers. Chemical film
conversion coatings are electrically conductive.

Media Tumbled

Die cast materials are subjected to vibratory media tumbling to remove sharp
edged and smooth surfaces.

Custom

Don't see the finish you need? Submit an RFQ and our partner shops will look
into a finishing process for you.


READY TO GET STARTED ON YOUR DIE CASTING QUOTE?

Start Your Quote




APPLICATIONS OF DIE CASTING

The versatility and high production potential of die casting enable it for
various applications and industries. Die casting products that are small to
medium in size with complex features are typically well suited for the process.
Examples include consumer and industrial products, automotive parts, aerospace
components, and parts for medical devices. Die casting products is a great
option when you need high-volume metal parts that may be too large for similar
high-volume processes such as Metal Injection Molding (MIM).

 * Aerospace & Automotive Components
 * Connector Housings
 * Pumps and Plumbing Fixtures
 * Outdoor lighting
 * Gears
 * Appliances and Lighting




DIE CASTING ADVANTAGES AND DISADVANTAGES


ADVANTAGES OF DIE CASTING


Complex Geometry

Die casting can reliably produce metal parts with thin walls and challenging
geometry that is durable and dimensionally stable.


Strength

Metal die casting parts are typically stronger than plastic injection molded
parts and more resistant to high temperatures. Metals such as aluminum offer
exceptional strength-to-weight ratios.


Precision

Die casting offers typical tolerances ranging from +/-0.003″ – 0.005″ per inch
but can go as tight as +/- .001” depending on your specifications, part
geometry, and material.


Custom Finishes

Metal finishers can produce cast parts with smooth or textured surfaces, paints,
and plating finishes. Finishes can protect from corrosion and improve cosmetic
appearance.



DISADVANTAGES OF DIE CASTING


Tooling Cost

While the per piece cost of die cast parts is relatively low, the tooling dies
and maintenance costs can require a high initial investment.


Not for Low Quantities

Due to the higher upfront tooling costs, die casting is not economical for
low-volume runs. We recommend only considering die casting for quantities
greater than 1000.


Lead Times

Before production, many steps must be accomplished first, often taking multiple
weeks to execute. These steps include addressing DFM concerns, tool design,
manufacturing the tools, and creating samples. The upfront checks and
validations make die casting one of the slower manufacturing processes to ramp
up compared to others.


Our team of experts will be working with you closely throughout the process and
offer suggestions and options to provide you with the best possible turnaround
while working to meet your unique needs.




WHY CHOOSE XOMETRY FOR DIE CASTING SERVICES?


ENDLESS OPTIONS

Choose from millions of possible combinations of materials, finishes,
tolerances, markings, and certifications for your order.


EASY TO USE

Get started with our easy-to-use platform and let our experts take care of
managing the project from locating the right manufacturing partner to delivery
logistics.


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We are ISO 9001:2015, ISO 13485, and AS9100D certified. Only the top shops that
apply to become Suppliers make it through our qualification process.

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