Surface grinding services involve the precision machining of surfaces using abrasive particles or grinding wheels to remove material and create a smooth finish and good surface roughness.

There are many types of surface grinding, let’s take a look at them:

surface grinding Types:

Manual surface grinding

The manual surface grinding method mainly uses grinding tools such as grinding wheels, sandpaper, wire brushes, and grinding stones to grind the surface of the workpiece.

pure manual grinding is now mostly used for the last process of polishing the precision parts.

Surface Grinder grinding (Semi-Automatic grinding)

Surface grinding by surface grinder machines also can be divided into several types, plain surface grinding and internal and external cylindrical grinding.

A plain surface grinder is used to grind flat parts to achieve a smooth and flat outer surface.

Internal and external cylindrical grinding machines are used to grind the cylindrical inner and outer surfaces of product workpieces.

This kind of semi-automatic surface grinding is very suitable for grinding mini and small precision parts with high precision requests and high surface roughness requirements.


Full Automatic Surface Grinding

The full automatic surface grinding machines are mainly used for grinding medium to large-sized flat components. They can be easily controlled with an automatic program.

There are also some Sandbelts and grinding machines, which are also operated manually as individual components, and are suitable for medium to large-sized components.

There are also some other grinding methods, but more like polishing for the surface, for example, Glass bead sandblasting, we will not introduce them anymore.


Here’s an overview of what surface grinding services typically contain:

Surface Preparation:

The process begins with preparing the parts’ surface for grinding. This may involve cleaning, degreasing, and sometimes rough machining to remove excess material.

Mounting the parts:

The parts are securely mounted on a magnetic chuck or fixture on the grinding machine’s table. It’s important to ensure proper alignment and stability to achieve accurate results.

Selection of Grinding Wheel:

Choosing the appropriate grinding wheel is crucial and depends on many factors. These factors include material type, hardness, desired surface finish, and the precision required. Different abrasive materials and grit sizes are available for various applications.

The Diamond Wheel is one of the best grinding wheels. Of course, the quality also depends on the different wheel manufacturers from different countries, for example, Japanese-made diamond wheels are regarded as the highest quality wheels, but the costs are also very expensive.

stamping-die-components-cnc-surface-grinding machining

Grinding Operation:

The grinding wheel, typically made of abrasive particles bonded together, is brought into contact with the parts’ surface. The grinding machine’s spindle rotates the wheel while it traverses across the surface, removing material incrementally with each pass.

Automatic grinding machines (suitable for grinding large parts) can be operated automatically; semi-automatic grinding machines (suitable for grinding small parts) are much dependent on the machinists grinding technology.

Control of Parameters:

During the grinding process, parameters such as feed rate, wheel speed, depth of cut, and coolant flow are carefully controlled to achieve the desired surface finish and dimensional accuracy.

Monitoring and Quality Assurance:

Operators monitor the grinding process closely, checking for any deviations from specifications and making adjustments as necessary. Quality control measures may include surface roughness measurement, dimensional inspection, and visual examination.

Surface Finish:

Surface grinding can achieve a wide range of surface finishes, from rough to extremely smooth, depending on the grinding wheel grit size and the grinding parameters used.

Deburring and Final Inspection:

After grinding, the parts may undergo deburring to remove any remaining sharp edges or burrs. Final inspection ensures that the surface meets the required specifications and quality standards.

Surface grinding services are commonly used in various industries such as automotive, aerospace, tool and die making, especially for the precision parts for some engineering applications requiring high precision and surface finish quality.

Outsourcing surface grinding services to specialized machining factories can provide cost-effective solutions for mold and tools manufacturers without the need to invest in expensive grinding machinery.

Langdi Precision specializes in various kinds of grinding and machining services for small precision parts. If you have any needs in this field, welcome to contact us.

Published On: March 19th, 2024 / Categories: Technology /

Leave A Comment