Are you looking for the best CNC machining factories in China to meet your precision manufacturing needs? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare the top CNC machining factories in China, highlighting their strengths, capabilities, and what sets them apart. Let’s dive in and find the perfect partner for your next project.

What is Reaming: a Precision Machining Operation.

Product Details: Reaming is a precision machining operation used to enlarge the diameter of an existing hole to a precise dimension and surface finish. It involves the use of a machining tool called a reamer that removes a small amount of material from the hole surface to achieve the desired dimension and finish. The reaming process is a finishing operation that follows drilling or boring and can be done by hand or machine. The machine reamer is mounted on a spindle that rotates at low speed, and the workpiece is held in a fixture that allows for precise positioning and alignment. The

machine reamer is fed into the hole using a feed mechanism, and the process is controlled by the operator.

Pros:
– Improved hole accuracy: Reaming ensures that the hole is round, straight, and ha…
– Improved surface finish: Reaming produces a smooth surface finish that reduces f…
– Increased tool life: Reaming reduces tool wear and extends the life of cutting t…
– Cost-effective: Reaming is more economical and practical when processing smaller…

Cons:
– Cannot correct positional errors: Reaming cannot correct positional errors of th…
– Not suitable for all hole types: Reaming is not suitable for machining stepped h…
– Requires precise control: Reaming requires strict control of parameters like fee…

What is Reaming: Working Principle, Applications …

Exploring the Reaming, Drilling and Tapping Techniques

Product Details: The website discusses various CNC machining techniques including reaming, drilling, and tapping. Reaming is a process to smooth and enlarge pre-drilled holes, achieving precise hole tolerances and surface finishes. Drilling involves creating holes using a rotating cutting tool and is essential for creating simple and complex holes. Tapping creates threaded holes using a tap, which rotates and cuts threads into the hole walls. These processes are used in industries such as aerospace, automotive, and medical to produce high-precision parts.

Pros:
– Precise hole tolerances and surface finishes through reaming
– Ability to create complex holes and threaded holes efficiently through drilling…
– High productivity and reduced cycle times due to CNC automation
– Uniform thread quality and reduced risk of stripped threads in tapping
– Flexibility in creating various types of threads, including left-hand threads an…

Cons:
– Potential for chip accumulation during drilling and tapping, leading to tool bre…
– Risk of tapping tool breakage due to excessive feed rates or incorrect tool alig…
– Workpiece deflection can occur during drilling and tapping, especially with larg…

What Is Reaming & Reamer And Their Differences

Product Details: A reamer is a cutting tool with multiple flutes and cutting edges designed to remove a small amount of material from the inner surface of a hole to improve its accuracy, size, and surface finish. Reamers are precision tools with specific dimensions and geometries, coming in various sizes and styles such as straight-flute reamers, spiral-flute reamers, and tapered reamers. They are typically made from high-speed steel (HSS), carbide, or other hard materials to withstand the rigors of the machining process. The primary function of a reamer is to perform the reaming process effectively, making the hole smoother, more precise, and

compliant with tight tolerances.

Pros:
– Improves the accuracy, size, and surface finish of holes.
– Can create specific surface finishes, such as fine or super-finish.
– Available in various styles suited for different applications.
– Made from durable materials like HSS and carbide.
– Gradually removes material uniformly from the hole’s inner surface.

Cons:
– Requires proper maintenance and sharpening to ensure continued effectiveness and…
– Limited to the reaming process and cannot be used for other machining operations…

What is Reaming & How To Ream A Hole

Product Details: Reaming is a precision machining operation that ensures a drilled hole has the right dimensions while enhancing its surface finish. It involves enlarging existing hole diameters more accurately and improving the surface finish of the hole’s walls. The reaming tool, called a ‘Reamer,’ is a rotary cutter that extracts significantly less material from a workpiece than drill bits used in drilling operations. The process is typically performed after drilling and can be done using a drill press or milling machine. Key parameters include using half to two-thirds of the drilling speed for RPM and twice the feed of the drill

used. Lubrication with lighter cutting oil or coolant is also essential[2].

Pros:
– Achieves high diameter accuracy and dimensional tolerance
– Enhances the surface finish of the hole’s walls, with surface roughness values r…
– Allows for tight tolerances with higher speeds and feed rates due to multiple cu…
– Improves quality compared to boring due to the multiple cutting edges of the rea…

Cons:
– Requires an existing hole prepared by the drilling process
– May not be as accurate when performed manually compared to CNC reaming due to po…

Hole Reaming Machine For Undercut Anchor Bolt from China

Reamers Used in CNC Machining

China Spiral Flute Reamer Manufacturers, Suppliers

Product Details: The Spiral Flute Reamer by ZCC·CT is a solid carbide tool designed for the semi-finishing and finishing of existing holes to achieve precise size, high surface quality, perfect roundness, and cylindricity. The reamer is available in a diameter range of 4.0mm to 20.0mm and features right or left helical flutes. The model names include 3101H7 and 3103H7, with the precision class of the reamed hole reaching H7 as specified in GB/T1800-1804. The cutting parameters vary based on the workpiece material, with specific rotating speeds and feed rates provided for materials like copper alloy and casting aluminum alloy. The reamer’s code

includes details such as shank type, cooling method, and chip flute direction[1].

Pros:
– High precision and surface quality due to solid carbide material and precise man…
– Available in a range of diameters to suit various applications
– Right or left helical flutes for efficient chip evacuation
– Low speed cutting for improved machining precision
– Detailed cutting parameters for different workpiece materials

Cons:
– Requires careful selection of cutting conditions to balance precision and effici…
– Upper limit of cutting speed must be considered to avoid compromising machining…
– May require additional consideration for workpiece material and machining condit…

Carbide Reamer for High-Speed Reaming Test of Hole CNC …

Product Details: High-performance carbide reamers are designed for precision and efficiency in CNC machining. These reamers are made with carbide tips, which are highly resistant to wear, allowing for accurate hole sizes and smooth finishes over an extended period. They are suitable for a variety of materials, including hard metals like titanium and softer materials like aluminum. Carbide reamers are engineered for high feed rates and speeds, reducing machine cycle times and increasing productivity. They feature polished flutes for easy chip flow and are precision ground for consistent cutting edges[2][3][4].

Pros:
– Ensure exceptionally tight tolerances and precise hole sizes, making them ideal…
– Offer extended tool life due to their wear-resistant carbide tips, reducing down…
– Enable faster feed rates and higher speeds, slashing cycle times and lowering co…
– Provide consistent quality and maintain hole size and surface finish over a long…
– Can handle a variety of materials, including hard and soft metals
– Reduce the need for secondary operations due to their precise cutting and finish…

Cons:
– Higher initial cost compared to traditional reamers made from high-speed steel o…
– May require careful setup and maintenance to avoid issues such as poor finish or…
– Can be unreliable in maintaining tight position tolerances, especially in comple…

PA70 Reaming Machine in Shanghai, Shanghai, China

Product Details: The PA70 Reaming Machine is located in Shanghai, China. Key specifications include a maximum depth of 400mm (or customized), a maximum travel of 4000mm, and a maximum cutting depth of 3mm. The machine is driven by a servo motor with a power of 2 KW.

Pros:
– High precision with servo motor drive
– Customizable maximum depth
– Substantial maximum travel of 4000mm
– Efficient cutting capability with a maximum cutting depth of 3mm

Cons:
– Limited information available on maintenance and upkeep
– No details provided on the machine’s durability or lifespan
– Specific operational requirements and training needs are not mentioned

Comparison Table

Company	Product Details	Pros	Cons	Website
What is Reaming: a Precision Machining Operation.	Reaming is a precision machining operation used to enlarge the diameter of an existing hole to a precise dimension and surface finish. It involves the…	– Improved hole accuracy: Reaming ensures that the hole is round, straight, and ha… – Improved surface finish: Reaming produces a smooth surface fin…	– Cannot correct positional errors: Reaming cannot correct positional errors of th… – Not suitable for all hole types: Reaming is not suitable for m…	www.davantech.com
What is Reaming: Working Principle, Applications …				www.machining-custom.com
Exploring the Reaming, Drilling and Tapping Techniques	The website discusses various CNC machining techniques including reaming, drilling, and tapping. Reaming is a process to smooth and enlarge pre-drille…	– Precise hole tolerances and surface finishes through reaming – Ability to create complex holes and threaded holes efficiently through drilling… -…	– Potential for chip accumulation during drilling and tapping, leading to tool bre… – Risk of tapping tool breakage due to excessive feed rates or i…	www.davantech.com
What Is Reaming & Reamer And Their Differences	A reamer is a cutting tool with multiple flutes and cutting edges designed to remove a small amount of material from the inner surface of a hole to im…	– Improves the accuracy, size, and surface finish of holes. – Can create specific surface finishes, such as fine or super-finish. – Available in vario…	– Requires proper maintenance and sharpening to ensure continued effectiveness and… – Limited to the reaming process and cannot be used for other ma…	www.richconn-cnc.com
What is Reaming & How To Ream A Hole	Reaming is a precision machining operation that ensures a drilled hole has the right dimensions while enhancing its surface finish. It involves enlarg…	– Achieves high diameter accuracy and dimensional tolerance – Enhances the surface finish of the hole’s walls, with surface roughness values r… – Al…	– Requires an existing hole prepared by the drilling process – May not be as accurate when performed manually compared to CNC reaming due to po…	waykenrm.com
Hole Reaming Machine For Undercut Anchor Bolt from China				www.stonecontact.com
Reamers Used in CNC Machining				www.cncmachinings.com
China Spiral Flute Reamer Manufacturers, Suppliers	The Spiral Flute Reamer by ZCC·CT is a solid carbide tool designed for the semi-finishing and finishing of existing holes to achieve precise size, hig…	– High precision and surface quality due to solid carbide material and precise man… – Available in a range of diameters to suit various applications…	– Requires careful selection of cutting conditions to balance precision and effici… – Upper limit of cutting speed must be considered to avoid compr…	www.zcccuttingtools.com
Carbide Reamer for High-Speed Reaming Test of Hole CNC …	High-performance carbide reamers are designed for precision and efficiency in CNC machining. These reamers are made with carbide tips, which are highl…	– Ensure exceptionally tight tolerances and precise hole sizes, making them ideal… – Offer extended tool life due to their wear-resistant carbide ti…	– Higher initial cost compared to traditional reamers made from high-speed steel o… – May require careful setup and maintenance to avoid issues such…	www.machining-custom.com
PA70 Reaming Machine in Shanghai, Shanghai, China	The PA70 Reaming Machine is located in Shanghai, China. Key specifications include a maximum depth of 400mm (or customized), a maximum travel of 4000m…	– High precision with servo motor drive – Customizable maximum depth – Substantial maximum travel of 4000mm – Efficient cutting capability with a maxi…	– Limited information available on maintenance and upkeep – No details provided on the machine’s durability or lifespan – Specific operational require…	www.machinio.com

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Reaming Machining in China

What is reaming and why is it important in machining?

Reaming is a precision machining process that refines the dimensions and surface finish of an existing hole. It involves using a reamer, a multi-fluted cutting tool, to slightly enlarge the hole, improving its roundness, straightness, and surface finish. This process is crucial for achieving tight tolerances and a smooth surface, which is essential in industries like aerospace, automotive, and medical device manufacturing.

How does the reaming process work?

The reaming process starts with drilling a hole that is slightly smaller than the desired final size. A reamer is then inserted into this hole, either manually or using machinery like a CNC machine or drill press. The reamer rotates and removes a small amount of material from the hole surface until the desired diameter and surface finish are achieved. This process ensures the hole is accurate, round, and has a smooth surface finish.

What are the benefits of using reaming in machining operations?

Reaming offers several benefits, including improved hole accuracy, a smoother surface finish, and increased tool life. It ensures that the hole is round, straight, and has a precise diameter, which is critical for applications requiring high precision. Additionally, reaming is cost-effective and faster compared to other machining processes like grinding or honing, and it reduces tool wear by removing only a small amount of material.

What types of reamers are commonly used in machining?

There are various types of reamers used in machining, including hand reamers and machine reamers. Hand reamers are used manually to enlarge holes, while machine reamers are mounted on machinery like CNC machines or drill presses for automated operations. There are also different designs, such as floating reamers, which offer high-quality machining with simple fixture designs and low costs.

How do I ensure high-quality results from the reaming process?

To ensure high-quality results from the reaming process, you need to follow several steps. First, secure the workpiece firmly on the machine tool to prevent any movement during processing. Use the correct drill size before reaming, typically 2-4% smaller than the reamer size. Apply the proper feed and speed for the material, and use lubricants to reduce friction and heat. Finally, conduct a thorough inspection and measurement of the machined holes to ensure they meet the required tolerances and surface finish.