Precision processing and polishing of brass

This page introduces the brass polishing process performed by TDC.

Please also refer to the “Polishing service” page for the polishing process performed at TDC.

What is brass?

Brass is an alloy of copper and zinc, and it is the origin of the name “brass band”, which is a musical formation that uses brass instruments.

In general, brass is defined as brass with 5 to 40% zinc added, but one of the characteristics is that the color changes depending on the ratio of copper and zinc.

Well-known brasses are C2600(7:3 brass) and Rixty-four brass, which have a ratio of copper to zinc of approximately 70:30 and 60:40, respectively. Its characteristics change depending on the ratio of zinc, but it is characterized by the luster and high ductility that are unique to brass.

It is also used as a substitute for gold because it has a golden luster when polished or mirror-finished.

History of brass

It is said that brass began to be used from BC, and was also used as currency in the ancient Roman Empire.

Brass, which has a beautiful gold-like shine, is also used as plating, and it is said that this brass was used in the “fake gold crown” that the ancient Greek scientist Archimedes discovered.

Features and processing characteristics of brass

Brass has the following characteristics and processing characteristics.

• Malleability
  Brass, which is a malleable and soft material, has the property of being resistant to breakage and breakage even when compressive or tensile forces are applied. For this reason, it is easy to perform press work and bending with a bender, and it is used in various scenes from electrical appliances to decorations.
• Machinability
  Brass also contains small amounts of lead and iron, making it easy to cut and sharpen. Due to this high machinability, precision machining is also possible.
• Electrical conductivity
  Brass has the same electrical conductivity as silver, and is also used for contact parts such as outlets and connectors.
• Hot Forgeability
  Brass does not break even when stretched at room temperature, and can be processed into complex shapes by heating.

Brass processing at TDC

At TDC, it is possible to perform high-precision polishing on brass.

By combining the grinding and precision lapping techniques that we have cultivated so far, we perform precision manufacturing using brass.

Features of TDC’s brass precision processing

TDC’s brass precision processing has the following strengths and features.

• High-precision polishing technology
  TDC’s precision polishing technology enables ultra-high-precision metal precision processing at the micron and nano level by controlling the removal amount. Compared to processing methods such as cutting and grinding, it is possible to handle any shape without applying a load to the object.
• Short delivery time and express service available
  By owning more than 100 polishing machines, we can achieve short delivery times even for large lots and complex processing. If you are in a hurry, we will also respond to consultation with “express response”.
• Small Lot
  Please feel free to contact us for small lot orders starting from 1 unit and prototype production.
• Owns over 100 abundant processing machines
  TDC owns more than 100 polishing machines such as lapping machines and surface grinders. We also have various processing machines such as machining centers and milling machines, so we can handle all kinds of processing.
• About half of the polishing equipment is manufactured in-house
  About half of the more than 100 polishing machines are made in-house, realizing “low-cost” and “high-quality” manufacturing.

Brass precision processing example at TDC

We will introduce typical brass construction examples that can be processed and manufactured at TDC.

Examples of precision processing: We manufacture electroforming masters, molds, various test pieces, long mirror foils, etc.

• Specifications: Ra1 nm or less, flatness of 0.001 mm or less, parallelism of 0.001 or less, etc.

According to your desired specifications, we can combine elements such as surface roughness, flatness, parallelism, and dimensional tolerances to achieve high-precision manufacturing. Brass is harder than copper, so it has good workability and accuracy. Of course, the supplied materials

Contact TDC for Brass polishing and grinding

At TDC, we will solve the problems of brass processing of all kinds of precision and shape with the polishing and precision processing technology that we have cultivated so far in micron units.

We support precision processing of a wide range of metal materials, from metal processing and parts processing using brass materials to processing that gives the surface a mirror-like luster. Please feel free to contact TDC.

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