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Mastering Stainless Steel Turned Parts: Insights and Tips

Discover the essentials of stainless steel turned parts, including their benefits, types of stainless steel, common applications, and machining challenges. Learn why HDC Manufacturing stands out as a trusted supplier, offering high-precision parts with various surface finishes. This guide also provides insights on selecting the right manufacturer for custom stainless steel turned parts, ensuring quality and efficiency for your projects.

Understanding Turning in Machining

figure 1 what is turning in machining

Turning is considered one, if not the most popular and common type of machining operation. It uses a lathe, which is a machining tool that is primarily used for shaping a material by rotating the workpiece/material around a stationary cutting tool.

So, in simpler terms, turning is a subtractive machining procedure that takes out a diameter of material from a workpiece.

Technically, the goal of turning is to reduce the diameter or overall girth of the material to achieve a specified size and/or dimension.

Stainless Steel Turned Parts

figure 2 what are stainless steel turned parts

These are any part or component of a machine made out of stainless steel using CNC turning or computer numerically-controlled turning. Ideally, stainless steel turned parts are accurate and precise to the desired measurements and dimensions; they also use multiple axes of the lathe, depending on the work needed.

Of course, the material of these parts and components would be stainless steel.

The Characteristics of CNC Turned Parts

CNC turned parts are known for superior accuracy, resulting in strict tolerances of geometric shapes that often exhibit round or cylindrical symmetry and can find use where the part needs balancing about an axis. They can include threads, grooves, complex profiles with intricate shape details such as tapers and chamfers at the final scale excellent repeatability. This dynamic ability to produce a diverse range of geometric properties makes CNC turned parts an indispensable feature in numerous operations and industries.

Benefits of Using Stainless Steel For Machining

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Stainless steel is actually one of the best, if not the best, and easiest types of steel when it comes to machining. There are tons of reasons why, but for the benefit of everyone, the following are the factors that make stainless steel a perfect option for machining (whether CNC or manual):
  • Stainless steel can withstand extreme temperatures
  • They have an excellent strength-to-weight ratio
  • The strength can easily be improved via heat curing and/or cold hardening
  • Stainless steel is flexible and easily adaptable as it can be used for a wide range of applications
And in case you weren’t aware, stainless steel is actually grouped and categorized into a few different types, which brings us to our next question, which is…

Types of Stainless Steel Used in Turned or Machined

figure 3 figure 3 what types of stainless steel are turned or machined There are quite a few different types of stainless steel, each having its own advantage or drawback when it comes to machining. To help you, here are the different types of stainless steel:
  • Austenitic
  • Martensitic
  • Duplex
  • Ferritic
  • Precipitation Hardening Grade
Austenitic is the type of stainless steel that is the most commonly machined. This category includes 200 and 300-series stainless steels, or the type that is ideal for high-temperature applications – but they’re also the most challenging and most difficult to machine. The rarest and most unique would be the precipitation hardening grade. These are the stainless steel types that are used for the military and defense industries.

Surface Finishes Available for Stainless Steel Turned Parts

The surface finish of stainless steel turned parts can be varied depending on particular requirements. Some of these are polished and brushed finish for aesthetics, bead blasting for textured effect, electropolishing and passivation corrosion resistance anodizing added protection & color PVD coating color variety durability black oxide visual appearance glare reduction powder coat protective. When choosing a finish, factors such as function and aesthetics are considered along with environmental conditions stipulating that stainless steel turned parts fit the bill on both aspects of quality.online cnc machining service 7

The Reason That Austenitic Difficult to Machine

The reason why austenitic stainless steel is considered challenging to machine and work on is because of its low thermal conductivity. What this means is, heat can build up easily at the face of the cutting tool, which can end in unnatural effects such as poor tolerance control, distortion, warping, or even deformation of the material.

NOTE: Martensitic stainless steel is stronger, more abrasion-resistant, and tougher than austenitic, but the latter has better corrosion resistance.

Common Parts Manufactured Using Stainless Steel Turning

figure 4 what are the common parts manufactured using stainless steel turning You’ll find a ton of different parts and components produced and manufactured via stainless steel turning. Here at HDC Manufacturing, we are known for high-precision stainless steel turned parts, 304 stainless steel turned parts, shafts, 4-axis machining parts, and many more. Take note, these are just what we are known for. Our skill and overall experience in stainless steel turning transformed us to produce many other parts and components apart from these. To be more generic, other parts and components you can produce via stainless steel turning are:
  • Garden equipment
  • Aerospace and automotive components
  • Kitchen appliances
  • Building structures
  • Furniture
  • Escalators
  • And many more!

Advantages of Stainless Steel Turned Parts

There are many different pro and advantages of stainless steel turned parts, the most common would include:
  • They increase the speed and efficiency of the production process, especially via CNC machining
  • The end products are versatile, flexible, and highly adaptable
  • There are little-to-no errors involved compared to human-machine processes
  • Strict tolerances in production and manufacturing
  • Costs are greatly reduced
  • Industrial operations are safer and more comfortable than human-machine processes

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Disadvantages of Stainless Steel Turned Parts

And if you thought you’ll be able to live with those pros and advantages alone, think again. Just like any other type of action, there’ll always be drawbacks or cons to stainless steel-turned parts, too. These drawbacks include:
  • High thermal strengths can be a challenge for some machines, therefore it may take more time than the usual
  • There is a high chance of deformation or distortion, especially if the wrong type of stainless steel is used
  • Stainless steel has lower thermal conductivity compared to other types of alloys and steel

The Challenges in CNC Turning of Stainless Steel

CNC turning of stainless steel involves multiple challenges due to its unique properties:
  • High Hardness: Increased tool wear and reduced tool life
  • Heat Generation: It causes thermal expansion and possible distortion, requiring good heat management.
  • Work Hardening: During machining, the material becomes hard which causes tool wear and special tools are needed.
  • Chip Control: Tough, stringy chips can lower productivity and affect finish.
  • Corrosion Resistance: Needs a well-considered choice of cutting fluids to eliminate corrosion.
  • Tight Tolerances and Surface Finish: Difficult as the material is hard and prone to work-hardening.
  • Tool Selection and Coatings: It is necessary to select tools that are able to tolerate high temperatures and wear.
  • Machine Rigidity: Absolutely needed to minimize vibrations and guarantee accuracy.
  • Cost: Due to wear, tooling needs that are highly specific and longer machining time.
  • Environmental Considerations: The appropriate treatment and recycling of stainless steel refuse is also vital.
stainless steel cnc machining services 9Addressing these issues necessitates experience, appropriate equipment and tooling that adequately facilitate effective and accurate machining in CNC turning of stainless steel.

Get High-Quality Stainless Steel Turned Parts

We here at HDC Manufacturing have been considered by many businesses and organizations in and around China as their go-to when it comes to stainless steel-turned parts. Being in the industry for 12+ years, not once did we encounter problems pertaining to quality, speed, accuracy, and customer service.

Never worry about where you can get premium stainless steel turned parts any longer when you choose to work with us here at HDC Manufacturing!

We are certified, licensed, and experienced when it comes to stainless steel motorcycle parts, and machined parts, as well as working on a wide library of stainless steel categories.

Besides this, we’re also known as the best when it comes to aluminum forging, laser cutting, sheet metal fabrication, CNC machining, and many more!

Guidance for Custom Stainless Steel Turned Parts

When looking for custom stainless steel turned parts from manufacturers, the first step is an assignment of well-defined requirements. This also involves indicating dimensions, tolerances, material grade and surface finish. However, the choice of stainless steel grade for your particular application is also important in consideration with corrosion protection and strength. Do not hesitate to choose a well-known manufacturer with good credentials, certifications and positive customer reviews.cnc bolts 03

Second, ask a number of manufacturers for quotes based on drawings or specifications to ensure accurate pricing. Talk with the manufacturer about machining methodologies such as CNC turning or Swiss screw machines, and provide tolerances acceptable and quality control measures required. Ask about lead times, productive capacity, and overall costs including transport and supplementary services.

Please maintain an ongoing communication and collaborative process through the entire project to resolve all issues or changes. Inquire for prototypes or samples to evaluate before proceeding production designs. Make arrangements for proper packaging and shipment, requesting quality assurance documentation. Finally, offer feedback and suggestions to enhance future collaborations as well as product quality. A successful partnership in custom stainless steel turned parts involves working closely with the manufacturer and close attention to details.


cnc lathing parts 3The world of stainless steel turned parts is enormous and complicated, but HDC Manufacturing has emerged as a more viable option for reliable suppliers. This comprehensive guide has given an elaborated account of the machining process , types stainless steel, surface finishes advantages challenges. When one is searching for custom-made stainless steel turned parts, it’s crucial to specify your needs carefully, select a reliable manufacturer, and keep the communication line open throughout the project. HDC Manufacturing’s professionalism and reliability in producing quality products make them the best corporate choice for precision turned stainless steel parts as well as a variety of other machining services.

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