Internal hole grinding, rolling burnishing, internal hole processing technology, advantages of rolling burnishing, disadvantages of rolling burnishing, advantages of grinding, shortcomings of grinding, roller burnishing tools manufacturers, use of roller burnishing tools, improve the dimensional accuracy of parts, reduce surface roughness, customize roller burnishing tools

Comparison of internal hole abrasive machining and roller burnishing processing

In actual production, for the processing of RaO.04μm~Ra1.6μm inner hole with surface roughness, the common processing technologies are grinding, rolling, broaching and honing.
Broaching tools are expensive, efficient and suitable for mass production. The roughness of honing surface for finishing requires Ra0.04 um or more. So grinding and rolling are commonly used. Next, through the analysis of the processing technology of a part, the grinding and rolling processes are compared.
The parts are shown as follows: the inner diameter isφ140±063, the roughness is Ra0.08μm, and the roundness tolerance is 0.045 mm.

Internal hole grinding, rolling burnishing, internal hole processing technology, advantages of rolling burnishing, disadvantages of rolling burnishing, advantages of grinding, shortcomings of grinding, roller burnishing tools manufacturers, use of roller burnishing tools, improve the dimensional accuracy of parts, reduce surface roughness, customize roller burnishing tools

Internal hole grinding, rolling burnishing, internal hole processing technology, advantages of rolling burnishing, disadvantages of rolling burnishing, advantages of grinding, shortcomings of grinding, roller burnishing tools manufacturers, use of roller burnishing tools, improve the dimensional accuracy of parts, reduce surface roughness, customize roller burnishing tools

The original processing technology: turning–Rough grinding–finish grinding. Turning residual grinding is 0.2mm~0.4mm. This process can ensure the technical requirements of the processed parts. Field test results show that the surface roughness Ra is 0.08 μm, the dimension is within the tolerance range of φ140~φ140±063 mm, and the roundness tolerance is within the range of 0~0.025 mm. Grinding is a high-speed cutting, which can be dispersed, reduce the surface roughness of parts, and improve the dimensional accuracy and geometric accuracy of parts.
But he still has many shortcomings: 1. In the grinding process, because of the rapid grinding speed, a large amount of grinding heat will be transferred to the parts, which makes the parts temperature rise tens of degrees, the parts shrink after cooling (affected by ambient temperature), and the aperture shrink. In order to ensure the dimensional accuracy, the workpiece size after completion needs to be adjusted artificially, so there will be the phenomenon of inaccurate processing size. 2. The high temperature in the grinding zone (the local surface temperature can reach 1000 C) causes great harm to the service performance of the parts. The surface layer will have residual tensile stress, grinding cracks, burns and so on. 3. In actual production, it is difficult to reduce the heat generated by grinding and the grinding efficiency is low.

Current processing technology: roughing–half finishing turning –finish turning– roller burnishing. Parts can be processed on the lathe, and this process can also fully guarantee the technical requirements of parts. Field results show that the surface roughness is Ra0.08 μm, the dimension is between φ140.02 mm – φ140.04 mm, the processing dimension is relatively concentrated, and the roundness tolerance is between 0.01 and 0.03. In order to ensure the quality of the parts, the process requires a high turning requirement. The surface roughness of the finished parts is Ra3.2μm and the dimension is φ140-0.01 0.02. Because the actual pressing volume of the parts processed by rolling is very small and the parts are processed by positioning themselves on the surface of the parts processed, the surface roughness of the parts can be reduced and the dimensional accuracy can be improved. However, the shape deviation of parts will not be significantly improved, so the accuracy of parts after rolling mainly depends on the accuracy of pre-processing (turning) and surface roughness before rolling. Rolling processing is chip-free processing, no heating phenomenon, and the finished size, i.e. the forming size, is easy to control. Residual compressive stress and cold hardening are produced on the surface of parts by rolling, which can improve the fatigue strength of parts, and its production efficiency is high. The disadvantage of this method is the need to customize roller burnishing tools. We are a manufacturer of roller burnishing tools. If you need custom roller burnishing tools, you can send drawings of processed parts to consult us.

The inner hole grinding process and rolling burnishing process can improve the dimensional accuracy and reduce the surface roughness. But there are the following differences:
The requirement of inner hole grinding is not high, which can reach higher precision than rolling machining. In the actual production, it is difficult to reduce the temperature of the grinding area in the process of inner hole grinding, and the residual tensile stress, grinding cracks and burns will be generated in the processing of surface layer, which will affect the service performance of parts and lead to low production efficiency.
Rolling burnishing has high requirements for the previous process and cannot improve the shape accuracy of parts. Because there is no heating in the processing process, it is easy to control the residual compressive stress and cold hardening in the surface layer of parts processing, which is conducive to improve the service performance of parts and high production efficiency.

RBT Roller Burnishing Tools, Roller Burnishing Tools, roller burnishing tools manufacturers, burnishing tools manufacturers

Where to find the internal hole roller burnishing tool manufacturer?

Our factory is a professional manufacturer of roller burnishing tools.

We produce adjustable ID Roller Burnishing Tools, OD Roller Burnishing Tools,  skiving and roller burnishing tools,  Flat Surface Roller Burnishing ToolsTaper Roller Burnishing Tools,  Single Roller and Burnishing ToolsRotary broaches.

Roughness in addition, there are the development and production of adjustable diameter roller burnishing tools that is not restricted by the length of the workpiece. And it can be mounted on a lathe tool holder for rolling.

5 tips on Guide to Buy a Roller Burnishing Tool in 2018 burnishing machine manufacturers

The RBT roller burnishing tools produced by our factory are suitable for the workpiece with high production volume, short period, high internal and external diameter requirements.

Application in pneumatic, aviation, automobile, mechanical, electronic, instrument, electromechanical and other manufacturers use effect very ideal. Our Roller Burnishing Tools have the characteristics of low price, convenient loading and unloading, long service life, low maintenance cost and high practical value.

The guide of how to buy roller burnishing tools in 2018.

Roller burnishing tools have been widely used in the manufacturing field due to their many advantages. With the use of a roller burnishing tool, you can have a mirror-like finishing on your surface. In addition, it also helps increase the surface hardness. It limits reworks and reduces rejections. Using a roller burnishing tool doesn’t take much time as the only pass is enough to give a smooth and perfect finishing to your surface.

If you are looking to buy a burnishing machine to avail its numerous benefits, this comprehensive buying guide can come in handy for you. Read about the purchase process of a roller burnishing tool.

Find Roller Burnishing Tools Suppliers

The first thing you need to do is buy a reliable roller burnishing machine to learn about different roller burnishing tool suppliers. Compare their specifications and features and select a product that provides maximum utility at the lowest price. For this, you can browse comments from different vendors. You can find these comments online.

Price Factor

Although price is an important factor, it is strongly advised not to buy roller burnishing tools from a low standard brand simply because of its low price. Such machines will stop working after only a few days of use or start showing signs of deterioration. Therefore, you may have to spend extra money to fix it. As a result, it may turn out to be a costly affair for you.

Look for a Durable rolling burnishing tool s and Machines

When buying a rolling burnishing tool, look for the one that can last for a longer period of time; it must be able to resist regular use. It is advised to buy durable ones even if they are expensive as they will turn out to be cost-efficient in the long run.

Select the Type of Rolling Tool

A rolling burnishing tool is available in different types. The specifications of each type vary. You must be aware of these types so that you can buy that one that can prove to be efficient for you. Take your requirements and the final outcome you desire into consideration before taking the final decision and buying a suitable type of rolling tool.  Also you can make you needs for the roller burnishing tools manufacturers; they can customize roller burnishing tools for different models and sizes. RBT is the reliable one, for more about please view RBT official website: http://www.rbtburnishingtool.com/

Take Suggestions from the Industry Experts

If the reviews on the internet have proved to be overwhelming for you, it is recommended to ask for suggestions from the industry experts. Based on their experience, they will be able to suggest a rolling burnishing machine that will prove to be effective and reliable for you.

There you go, now that you are aware of the top factors to consider before buying a roller burnishing tool, you can buy the best one out there. For a broad range of roller burnishing tools, do not forget to check out RBT’s machines, focuses on designing and manufacturing burnishing tools and machines so many years. We are the sub-brand of PURROS Machinery Co., Ltd that is popular for its premium quality and international standard burnishing machines.

What is the process of Roller Burnishing and its advantages?

What is the process of Roller Burnishing and its advantages?

What is burnishing?

Roller Burnishing is a Super finishing process. It is a cold working process which is achieved through the use of rolling elements to ensure that metallic surfaces are finished by chipless compression and smoothing. Since all machined surfaces consist of a series of peaks and valleys of irregular height and spacing, the plastic deformation created by roller burnishing is a displacement of the material in the peaks which cold flows under pressure into the valleys. The result is a mirror-like finish with a tough, work hardened, wear and corrosion resistant surface. Roller burnishing enables a metal surface to have a perfect, mirror-like finishing that too without the application of a tough process known as grinding.

What is the process of Roller Burnishing and its advantages?

Roller Burnishing Process

Burnishing can be defined as a process in which a smooth but hard tool using sufficient pressure burnishing is rubbed on the surface of the metal. This helps to smooth out the high spots by allowing the plastic flow of the metal. The edges of the metal can be smoothed by squeezing, smoothing the burr and smoothing the edges of the mold. Roller burnishing is cold working the surface of the work piece to improve surface structure. It produces a fine surface finish by the planetary rotation of harden rollers over a bored or turned metal surface. The roller burnishing operation compresses the “projection” (peaks) into the “indentations” (valleys) thus forming a smooth mirror finished surface.

Roller Burnishing can improve surface finish and size. Both internal and external surfaces can be polished using appropriate tools. It involves the cold working of the workpiece. The roller burnishing pressure to be applied depends upon factors like ductility, diameter, tensile strength, shape of the rolls etc.

Burnishing Tools

Burnishing tools have become a necessity in the manufacturing atmosphere wherever there is need for accurate size and smooth surface finish. Burnishing tools are generally made of high Speed Steel or Carbide material, that are positioned in slots along with a retaining cage.It has a number of tapered and polished precision rollers. They are used in the making of several parts of products which have conical, tube-shaped or disk like surfaces.

Burnishing tools can be fitted with Lathe, Drilling machine or CNC machine and can be operated easily without the operator having any specific skills.

Advantages of Burnishing Process

  • Improves the size and finish of revolution like cylinders and conical surfaces.
  • Internal and external surfaces can be burnished .
  • Improves surface hardness.
  • Very easy interchangeable parts.
  • Increases, wear-resistance, decreases fatigue and fights corrosion.
  • No skilled operator required.
  • Avoids honing, lapping & other costly finishing operations
  • Saves Time and Labour
  • Interchangeable Wear Parts

RBT Roller Burnishing Tools

We are roller burnishing tools manufacturer, supply and export a wide range of Roller Burnishing Tools to our clients for various applications. RBT offers different types of roller burnishing tools (ID Roller Burnishing Tools, OD Roller Burnishing Tools, Flat Surface Roller Burnishing Tools, Taper Roller Burnishing Tools) as they understand special tasks demand special solutions.  We aim to create new technology and make our products even much more effective than they currently are. Our products works based on application diameter and length various tool designs are made available to our clients.