Metal Part

Benefits of Metal Part

Tight Tolerances
Metal parts are manufactured to specific measurements. As a result, this means the parts fit together precisely and function as intended without gaps or misalignment. Tight tolerances are crucial in industries like aerospace, automotive, and medical devices, where even a tiny deviation can impact performance or safety.

Consistency in Production
Machining processes ensure that each part produced is consistent with the others. This consistency is key for maintaining quality across large production runs. Whether you' re producing a few parts or thousands, each one will meet the same specifications, which is important for maintaining high standards and reliability in the final product.

Material Properties
Metal parts are made from materials with inherent properties like high tensile strength, hardness, and resistance to wear and tear. Metals such as steel, aluminum, and titanium are commonly used because they offer great strength and resilience. These properties make machined metal parts capable of withstanding harsh conditions, heavy loads, and continuous use without deforming or breaking.

Efficiency in Mass Production
Once set up, machining processes can produce high volumes of parts with consistent quality and precision. The initial setup costs, including the investment in machinery and tooling, can be spread over large production runs, making each part less expensive to produce as the volume increases. This efficiency in mass production helps lower the unit cost of each part, making it more cost-effective, especially for large-scale manufacturing.

Versatility
Compatibility with Various Materials: Metal machining can work with a wide range of materials, including steel, aluminum, brass, titanium, and more. Furthermore, each material can be selected based on the specific requirements of strength, weight, corrosion resistance, or other properties needed for the part. This versatility in material choice allows manufacturers to tailor the parts to their specific application needs and performance criteria.

Wide Range of Applications
Metal parts are used in a diverse array of industries and applications. For example, they are found in everything from automotive components and aerospace parts to medical devices and consumer electronics. The ability to produce complex shapes and precise dimensions makes machined metal parts suitable for many uses, including structural components, functional elements, and decorative features. This broad applicability highlights the adaptability and usefulness of metal machining in various fields.

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Why Choose Us

Competitive Prices
We offer our products at competitive prices, making them affordable for our customers. We believe that high-quality products should not come at a premium, and we strive to make our products accessible to all.

Rich Experience
Has a long-standing reputation in the industry, which makes it stand out from its competitors. With over many years of experience, they have developed the skills necessary to meet their clients' needs.

Quality Assurance
In terms of quality assurance, the company strictly follows the standards and norms of the industry quality system. Adopt industry-leading testing equipment to ensure product quality and good reputation.

Professional Service
We can accept factory inspection and goods inspection at any time. Technical discussion, research and development of new products, and complete after-sales service.

High Quality Products
We always put customer needs and expectations in the first place, refine on, continuous improvement, to seek every opportunity to do better, to provide customers with their expectations of quality products, to provide customers with the most satisfactory service at anytime.

Customer Satisfaction
Providing after-sales services can enhance customer satisfaction by ensuring that customers' needs are met even after the purchase. This can lead to increased customer loyalty and positive word-of-mouth referrals.

Types of Metal Machined Parts

By Material

Aluminum Machined Parts

Aluminum is a popular choice for machined parts due to its excellent strength-to-weight ratio, corrosion resistance, and ease of machining. CNC aluminum machining is widely used in industries like aerospace, automotive, and electronics for components such as housings, brackets, and heat sinks.

Steel Parts

Steel, known for its durability and versatility, is another common material for machined parts. CNC steel machining is essential for producing components that require exceptional strength, wear resistance, and toughness, depending on the alloy. It' s commonly used in applications requiring high strength and durability, such as in construction equipment, industrial machinery, and automotive components.

Titanium Parts

Titanium is prized for its high strength, light weight, and exceptional corrosion resistance. Nevertheless, despite being more challenging and expensive to machine, industries like aerospace, medical, and military find it indispensable due to these crucial properties. Typical uses include aircraft components, medical implants, and high-performance automotive parts.

Brass Parts

Brass is an alloy of copper and zinc that is appreciated for its machinability, corrosion resistance, and aesthetic appeal. CNC brass machining is often used for producing decorative applications, plumbing fittings, and electrical components due to brass' s excellent conductivity and ease of machining.

Copper Parts

Copper is known for its excellent electrical and thermal conductivity, making it a key material for electrical components and heat exchangers. CNC copper machining is utilized for applications where efficient heat dissipation or electrical conductivity is required, such as in electronic connectors and cooling systems. Copper' s relative ease of machining further enhances its suitability for these critical applications.

By Machining Process

CNC Machined Parts

CNC (Computer Numerical Control) machining involves the use of computers to control machine tools. Consequently, this process allows for high precision and repeatability, making it ideal for complex and intricate parts. CNC machines can handle a variety of materials and perform multiple operations such as cutting, drilling, and milling. Typical CNC machined parts include aerospace components, medical devices, and custom steel parts.

Lathe Machined Parts

Lathe machining, also known as turning, involves rotating the workpiece against a cutting tool. Consequently, this process is particularly effective for creating symmetrical cylindrical parts such as shafts, bushings, and pulleys. Lathes can be manually operated or CNC-controlled for higher precision and efficiency. Additionally, lathe machining is commonly used in the automotive, aerospace, and manufacturing industries.

Milling Machined Parts

Milling machining uses rotary cutters to remove material from a workpiece. As a result, this process can produce a wide variety of shapes, including flat surfaces, slots, and complex contours. Milling machines can be vertical or horizontal and are often CNC-controlled for precision and versatility. Additionally, commonly milled parts include engine components, brackets, and molds.

Drilled Parts

Drilling is a machining process that involves creating round holes in a workpiece using a rotating cutting tool called a drill bit. Consequently, this process is fundamental in producing parts that require holes for bolts, fasteners, or fluid passage. Drilled parts are essential in almost every industry, including construction, automotive, and electronics.

Uses of Metal Machined Parts

Automotive Industry
Engine Components: Metal machined parts are vital for engine components like pistons, cylinders, and crankshafts. Precision machining ensures these parts fit perfectly and perform reliably under high stress.
Transmission Parts: Transmission components such as gears, shafts, and bearings are machined to exacting standards to enable smooth shifting and durability, essential for optimal vehicle performance.
Suspension Systems: Suspension parts, including control arms, shock absorbers, and struts, rely on metal machining for strength and durability, ensuring a smooth ride and vehicle stability.

Aerospace Industry
Structural Components: Machined parts are essential for aircraft frames, fuselage sections, and wing brackets, offering strength and lightweight properties.
Engine Parts: Components like turbine blades and compressor parts are precisely machined for reliable engine performance under extreme conditions.
Avionics Housings: Metal machined housings protect electronic systems from vibration, temperature, and interference, ensuring their durability and functionality.

Medical Industry
Surgical Instruments: Machined parts are used in precise surgical tools like scalpels and forceps, ensuring effectiveness and safety. Medical CNC machining is essential for producing these high-precision instruments, meeting stringent medical standards and requirements.
Implants: Metal machined implants, such as joint and dental replacements, are crafted for biocompatibility and precise fit.
Diagnostic Equipment: Parts are crucial for diagnostic tools like MRI and ultrasound machines, enhancing durability and accuracy.

Electronics Industry
Enclosures: Metal machined parts are used to create durable enclosures for electronic devices, protecting internal components from physical damage and environmental factors.
Heat Sinks: Machined heat sinks are essential for dissipating heat from electronic components, ensuring optimal performance and preventing overheating. Electronics CNC machining is crucial for producing these components with the precision and quality required for effective heat management.
Connectors: Precision-machined connectors facilitate reliable electrical connections between components, essential for the functionality of electronic devices.

Industrial Applications
Machinery Components: Machined parts are used in industrial machinery for components such as gears, shafts, and bearings, ensuring efficient operation and durability.
Tooling: Metal machined tooling includes parts like dies and molds, crucial for manufacturing and shaping materials in various industrial processes.
Custom Fixtures: Machined custom fixtures support and secure workpieces during manufacturing, enhancing precision and efficiency in production.

Three Ways Metal Parts Are Made

Numerous metal manufacturing processes exist for fabricating and finishing parts. Some methods have withstood the test of time, while others are newer to the industry. Each parts manufacturing process has distinct advantages that make it ideal for specific project applications.

Sheet Metal
Sheet metal is one of the more prevalent production methods because it accommodates many different metals. Aluminum, nickel, tin, copper and steel are all good candidates for sheet metal. The base metal passes through a series of rollers designed to flatten the metal to a specified thickness or gauge.
Use techniques like press brake metal bending, turret punching and die stamping on flattened sheets. Common uses for sheet metal include automotive manufacturing and decorative elements like tin ceilings.

CNC Machining
Computerized numerical control (CNC) machining describes a parts manufacturing process automated with technology. The term is broad, as CNC includes specialized methods like milling, bending, turning and precision work. In each project, machines operate from a program based on engineering drawings. Since software controls the functions like speed and angles, results are predictable and uniform.
CNC machining has many applications in the automotive, power generation and military and defense industries.

Welding
One of the earliest known metal manufacturing processes, welding involves joining together separate pieces with a solid bond to form one component.
Typically, welding falls into one of four categories — gas metal arc (MIG), gas tungsten arc (TIG), shielded metal arc (SMAW) and flux cored arc (FCAW). MIG is typical in the automotive and building industries, while TIG is the preferred method in the aerospace industry due to a strong weld. The FCAW process is popular in construction because it' s quick and portable.
Advancements in technology have led to the emergence of robotic welding in the metal part manufacturing industry. Robotic welding produces high-quality, consistent output, maximizing profits and efficiency.

5 Ways to Make Your Metal Parts Corrosion Resistant

Choose A Corrosion-resistant Metal

No metals are indestructible, but if your parts will be in contact with moisture or corroding substances, it makes sense to choose a corrosion-resistant metal.

Stainless steel: Stainless steels contain iron, which oxidizes and turns to rust. However, steels with a high chromium content (Stainless Steel 316, for example) are less susceptible to rust, since the chromium forms a protective layer of chromium oxide on the part surface.

Aluminum: Aluminum does not contain iron and therefore does not rust. A protective layer of aluminum oxide can form on a part' s surface when it contracts moisture, preventing corrosion.

Copper, bronze & brass: Red metals like copper, bronze, and brass contain minimal or no iron and do not rust. Oxidized copper exhibits a green-colored patina, and while this may not be aesthetically desirable, it protects the copper part from corrosion.

Design Parts That Minimize Environmental Damage

The material of a part affects its corrosion resistance, but so does its shape and texture. Engineers should therefore consider whether certain design features might encourage or discourage corrosion when creating their CAD design.

Features that could trap moisture or air should be avoided. Parts should not contain deep crevices where moisture can pool, and airflow should be encouraged if possible. If the part absolutely must contain crevices, tunnels, or other points of vulnerability, these areas should at least be made easily accessible for cleaning and maintenance.

Apply An Anti-corrosion Coating

Applying a coating over the surface of the metal can prevent the metal from corroding, since air, moisture, and other corrosive substances cannot directly touch the metal unless the coating itself wears off. Coatings can be reapplied after a period of time to maintain the condition of the part.

Paint and/or primers are a straightforward and cheap way to prevent corrosion, and may be necessary anyway for aesthetic reasons. Powder coating can also create a protective layer of a plastic material — epoxy, nylon, etc. — on the surface of the metal.

For some metals, it may be preferable to add hard chrome plating (affordable, good corrosion resistance) or black chrome plating (more expensive, excellent corrosion resistance).

Apply A Sacrificial Coating

Another way to make parts corrosion resistant is to apply a sacrificial coating to the metal instead of a protective coating.

The purpose of a sacrificial coating is not to prevent corrosion altogether, but to allow the coating to get corroded rather than the underlying material of the part. Hence why the coating is called a ‘‘sacrificial’’ material.

One example of a sacrificial material is zinc or magnesium on stainless steel parts. Steel that has been entirely coated in zinc is known as galvanized steel, and galvanization is an example of cathodic protection: steel becomes the cathode of an electrochemical cell.

However, the sacrificial material does not have to be applied as a coating; zinc and magnesium blocks, placed against the protected part, are sometimes used in the marine industry to a similar effect.

Control The Environment Around The Parts

Post-manufacturing steps can be harder to implement than pre-manufacturing ones, but it is still possible to reduce corrosion once the part is in use.

In certain situations, it may be possible to control the amounts of substances like oxygen or chlorine in the surrounding environment. It may also be possible to prevent parts from coming into contact with excess moisture, by adjusting their placement or introducing barriers, for example.

3ERP has many years of experience working with metals, including those with a high iron content, and we offer a range of surface finishing options that can prevent corrosion of your parts. Request a free quote today.

Metal Part Cleaning Basics

Impurities to Be Removed
During the course of manufacture, the surfaces of metal parts usually become covered by various chemical or particulate impurities called soils. A thorough high pressure washing may be helpful in removing tramp metal particles, or grit from the components. Coatings of lubricants and greases are more problematic.

The size and weight of the parts to be cleaned are both factors. Enormous parts may have to be cleaned individually by hand; smaller parts are usually cleaned in batches by immersion in a cleaning solution (often with the help of some vibration). The geometry of the parts is also important: complex, irregular geometries with threaded holes, etc. present the greatest challenges.

Use High Temperatures for Stubborn Soils
For the toughest jobs, metal cleaning solutions need to be heated for effective removal of surface impurities. From room temperature to about 100°F - 110°F, incremental increases in temperature offer no cleaning benefits. Above the 100°F threshold, significant improvements in cleaning results are obtained by further elevations in temperature.

Soils based on mineral oils, waxes or stearates can be tough to remove. Their high viscosities or water insolubility lead to cleaning resistance except at elevated temperatures -- in some cases approaching 200°F. The use of cleaning solutions at high temperatures helps break down the bonds that cause soils to adhere to metal.

Getting All Shook Up
There are many systems used to clean metal components. Some use bath immersions or sprays coupled with agitation of the cleaning fluid or the parts. It is common, for example, to immerse a batch of parts contained in a metal mesh basket or rack into a bath of cleaning solution. For effective cleaning, the solution or the parts within it should be circulated -- the more agitation the better. To this soaking cycle, an ultrasonic wave action may be added to loosen soils in tough-to-reach internal angles, holes or threaded areas.

Time Is of the Essence
Today's competitive market requires more throughput per hour for every manufacturing operation, including parts cleaning.

Generally speaking, more time soaking or under a spray means cleaner parts. However, demands on production volume have instead favored the development of faster-acting cleaners, more agitation and higher spray velocities for greater impingement.

Concentration Is Key
Most industrial metal cleaners have a particular volumetric concentration recommended by the manufacturer for best results. If you need to clean a batch faster or more thoroughly, it does not follow that you should just increase the concentration of the cleaning solution. This is a waste of product and money. Conversely, skimping on the concentration to save on cost may also end up costing you more through the re-processing of still-contaminated parts.

Our Factory

Mechanic Machining (Shenzhen) Co., Ltd, which was establish in 2004, is professionally engaged in the manufacturing and sales of various precision tooling fixtures and mechanic parts and accessories.
The factory covers an area of 4,000 square meters and has more than 80 employees. The company fully applies the ERP system and is managed in accordance with the ISO9001 and ISO14001 systems.

FAQ

Q: What is the cheapest way to manufacture metal parts?

A: Sheet metal fabrication is considered a lower cost method for manufacturing certain types of parts. It's simple, right? You cut the sheet to size, and form it to reflect the desired geometries.

Q: How do you print on metal parts?

A: Printing a photo on metal utilizes a process known as dye-sublimation. While inkjet printers reproduce an image by translating it into thousands of individual dots, dye-sublimation printers use heat to infuse an image onto an aluminum sheet.

Q: How do you bond metal parts?

A: Three types of adhesives have been proven to work well as metal glues: Epoxy adhesive, polyurethane adhesive, and super glue for metal. Most epoxies come as a two-part system. The components are mixed just before use.

Q: What machine makes metal parts?

A: Lathes are metalworking machines that rotate the workpiece to perform various machining operations. Lathes can be used to produce parts from ferrous and non-ferrous metals, plastics, and wood.

Q: Can you cut metal by hand?

A: Place the workpiece in a vice and clamp it. Or apply another technique to secure the metal to the surface firmly. Use one-way strokes in the opposite direction of the teeth to cut metal by hand. You can move fully forward and backward until you've made a millimeter-sized crater in the metal.

Q: Can you print metal parts?

A: Yes, it is possible to 3D print items from metal. There are several manufacturing processes which fall under the heading of metal additive manufacturing, but this article concentrates on those which use layers of metal powder to build up and form complex structures that may be difficult to create with other techniques.

Q: How do you stick metal parts together?

A: Epoxy Glue The strongest metal-to-metal connections are definitely epoxy glues. Most epoxy formulations urge you to mix equal amounts of adhesive and hardener and apply the mixture to one of the surfaces you're bonding with an appropriate tool.

Q: How are custom metal parts made?

A: The custom metal work process involves a series of steps, including the design and engineering of the product, selection of the metal materials, cutting and shaping of the metal, welding or joining the components together, and finishing the product.

Q: How are metal parts shaped?

A: Spinning, sometimes called spin forming, is a metal forming process used to form cylindrical parts by rotating a piece of sheet metal while forces are applied to one side. A sheet metal disc is rotated at high speeds while rollers press the sheet against a tool, called a mandrel, to form the shape of the desired part.

Q: How are metal parts cast?

A: Metal casting works by simply heating metal until it is in a liquid state--molten--and pouring it into a mold. It is then allowed to cool, the mold is opened, and the final cast item is removed.

Q: How are metal parts machined?

A: How are machined parts manufactured? They are manufactured through machining processes such as milling, turning, drilling, and grinding. These techniques remove material from raw material to shape it into the desired form, following specific designs and tolerances. What materials are commonly used for machined parts?

Q: How do you bond metal parts?

A: Three types of adhesives have been proven to work well as metal glues: epoxy adhesive, polyurethane adhesive, and super glue for metal. Most epoxies come as a two-part system. The components are mixed just before use.

Q: How do you cut metal parts?

A: Mechanical cutting processes are common in both small and large shops and are often the best way to cut metal for professional work. Tools like tin snips and bolt cutters are excellent for cutting thin metal, while power tools like angle grinders offer versatility for more advanced applications.

Q: How to test metals at home?

A: A magnet test is going to tell you right away if a metal is precious or base. Precious metals such as Gold, Silver, Platinum or Palladium will NOT be magnetic and a magnet will NOT have any pull on the item. Base metals will almost immediately be pulled to the magnet.

Q: How do you cast a metal part?

A: Metal casting works by simply heating metal until it is in a liquid state--molten--and pouring it into a mold. It is then allowed to cool, the mold is opened, and the final cast item is removed.

As one of the leading metal part manufacturers and suppliers in China, we warmly welcome you to wholesale high quality metal part made in China here from our factory. For customized service, contact us now.