Roller burnishing is achieved through the use of rolling elements to ensure that metallic surfaces are finished by chipless compression and smoothing. Roller burnishing tools are essential if you desire to finish the surface of a metal part without the need for abrasive processes like grinding. To finish your metal part so that it acquires a mirror-like sheen, you need to understand the process of finishing so that you are able to use the full range of advantages. RBT roller burnishing tools make use of highly polished tapered steel rollers and this quality of work of the company is further exemplified by the diverse precision products they offer.
The reason surface finishing is necessary is that after machining a metal, the surface may appear smooth to the bare eye but there are microscopic valleys and peaks which is referred to as roughness. Hence, surface finishing targets the reduction of this roughness average value of the metal surface. Unlike abrasive finishing which reduces the roughness average by tearing away part of the metal, burnishing utilizes a controlled plastic deformation of the metal part. This has an advantage in that burnishing will not result in sharp projections in the contact plane of the surface being machined as the case when you choose to use abrasive finishing.
Speed and thus a reduction of time spent working on a metal part is one of the more attractive pulls of burnishing over grinding. This is because roller burnishing is pretty fast and also repeatable meaning that incredible results are achieved with less cycle time. Most of the operations when working with roller burnishing tools are seconds-long operation as opposed to lapping, honing, or grinding. Burnishing also reduces the number of rejections and rework. Other advantages include the increase of surface hardness as a result of the cold rolling process.
It is important to understand from the get-go that not all parts will be suited to finishing by burnishing. RBT roller burnishing guide lists some requirements that one has to take into consideration to ensure that you get the optimum roller burnishing results. First, the best materials to be burnished are malleable or ductile metals; however, almost all metal can be burnished successfully. Such metals include; bronze, copper, steel, steel alloy, brass, aluminum, stainless steel, and cast iron.
For materials to be effectively burnished, the hardness should be lower than 40 HRC. However, there are materials that can be burnished well even though they are as hard as 45 HRC. Roughness should also be 2-3 micron which is suitable for burnishing. Another consideration is uniformity of the material which should be tear-free which ensures that ideal results are achieved.
RBT burnishing tools are of superior quality and they are in use in different sectors such as Railway, Textile, Home Appliances, Aircraft, and Automobile among many others that demand superior surface finish and close tolerance. 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. While our products are high-quality as evidenced by the number of positive reviews, we still aim to create new technology and make our products even much more effective than they currently are.