The manufacturing process of resin bond diamond grinding wheel

from JR(Guangdong) New Material Incorporated Company

https://www.jrabrasives.com/

https://www.jrdiamondtools.com/

 

Manufacturing process of resin bond diamond grinding wheels depends on type of resin bonds. High precison and efficiency of resin bond diamond grinding wheels can be achieved by our innovated production system and process control system. Here is an example process of our product.

 

1A1-D350-T150-X6-H203.0 resin bond diamond grinding wheel

 

一、Techinical Data:

 

Accuracy for the geometry of the wheel, the accuracy of resin bond diamond grinding wheel manufacturing should meet the technical requirements specified in the accuracy of resin bond diamond grinding wheel geometry.

The shape of the wheel - resin bond diamond grinding assembly wheel type 1A1 flat;

Nominal diameter (D) - 350 ± 1,0 mm;

Height (T) - 150 ± 1,0 mm;

Seating hole diameter (H) - 203.0 (with tolerance field H7) mm;

Working diamond layer thickness (X) - 6 + 0.2/-0.1 mm;

Gaps and flaking at the joint between the resin bond diamond layer and the grinding wheel body, as well as

Gaps and cracks and chips on the surface of the resin bond diamond-bearing layer are not allowed;

The surface of the resin bond diamond-bearing layer is not allowed to have pores, sinks, pitting

the area of more than 0.25 mm2 for resin bond diamond powders of grit size 40/28 and finer, and not more than 0.55 mm2 for resin bond diamond powders of grit size 50/40 to 250/200

0.55 mm2 for resin bond diamond powders with grain sizes from 50/40 to 250/200;

Tolerance of the radial run-out of the working surface of the resin bond diamond-bearing layer relative to

tolerance of the radial run-out of the working surface of the resin bond diamond layer with respect to the surface of the mounting hole not more than 0,02 mm;

Tolerance of end run-out of the working surface of the resin bond diamond bearing layer

with respect to the surface of the mounting hole not more than 0,02 mm;

Limit wheel speed Vs - 63 m/s (according to FEPA standards);

Wheel imbalance, in g/cm, must not exceed the values specified in ANSI or FEPA or JIS standards

 

二、Circle design and production(about 10- 15 days):

 

The design of the circle shall consist of three parts (zones), inseparably connected into

materials of the resin bond diamond grinding wheel body shall provide a uniform.

The materials of the resin bond diamond grinding wheel body shall provide a uniform coefficient of expansion of the abrasive layer in order to prevent the appearance of cracks on the abrasive layer during operation.

The design of the resin bond diamond wheel (abrasive material or binder material) must ensure uniform wear of the

diamond-bearing layer across the diameter of all zones during the resin bond diamond grinding of pellets.

The resin bond diamond grinding wheel is supplied balanced.

The design of the resin bond diamond wheel shall comply with the sketch according to the customer’s confirmation.

 

三、The test performance and quality of resin bond diamond grinding of the wheel:

 

The wheel shall provide a volume of ground tablets of not less than 50 tons per lap.

The removal per pass shall be 60 microns, but no more than 150 microns at a speed of

grinding of 2 tablets per second. The number of revolutions of the resin bond diamond grinding wheel

is constant and equal to 1000 ± 50 rpm.

The roughness parameter of tablets (after processing them on the wheel) should be

Ra≤1.0 µm

The grinding of pellets should be carried out with the use of coolant.

The design of the resin bond diamond grinding wheel must prevent the tablets from being destroyed during grinding and the

and "sagging" (adhesion of grinding dust) of the working area in the process of grinding.

Requirements for resin bond diamond grinding wheel components (wheel zones), feed and operating

Substances and operating materials of a resin bond diamond grinding wheel

The resin bond diamond layer in the grinding wheel zone is made only of synthetic diamond powders.

The grinding wheel zones are made only of synthetic diamond powders in an organic bond.

The abrasive capacity of the grinding wheel areas shall decrease from left to right as shown in the

sketch confirmed.

Grit size of diamond powder, concentration and bonding material: Tailor to customer's requirement.

 

四、Accessory:

 

The resin bond diamond grinding wheel will be supplied with a repair kit: diamond paste for grinding out

A repair kit will be included with the resin bond diamond grinding wheel: diamond paste to grind out small chips from the wheel.

Resin bond diamond grinding wheels will be packaged in a container. The packaging will ensure safety during transportation. The box will be marked with identification markings and signs stating the requirements for safe handling of circles.

 

五、Labeling :

 

The following markings shall be placed on the label of the circle:

Trademark and name of the manufacturer - ;

The grade and grit size of the diamond powder for each resin bond diamond grinding wheel;

Relative diamond concentration, in carats and bond grade for each resin bond diamond grinding wheel

The relative concentration of diamonds in carats in each resin bond diamond grinding wheel;

Date of manufacture (day,month, year);

Mark of conformity for certified products;

Limit working speed of the wheel, m/s;

Barcode (if any).

According to the standards s of ANSI or FEPA or JIS.

 

六、Each resin bond diamond wheel shall be accompanied by a document containing:

 

Trademark and name of the manufacturer - JR Logo and JR company or tailor to customer’s requirements

1A1-D350-T150-X6-H203,0

Description of the resin bond diamond grinding wheel shape and size designation;

The grade and grit size of the diamond powder for the resin bond diamond grinding wheel;

Relative diamond concentration and bond grade for the resin bond diamond grinding wheel;

Weight of diamonds in the resin bond diamond grinding wheel, in carats, for the wheel;

Stamp or signature of the Quality Control Department;

Date of manufacture (day,month, year);

Mark of conformity (for certified products);

Limit working speed of the resin bond diamond grinding wheel.

 

七、Safety Package:

 

The resin bond diamond grinding wheel is well protected against dampness, moisture rust and shock. Each wheel will be packed in a reinforced cardboard box with EPE foam inside. Then these boxes are packed in wooden cases with double straps and cases are marked “Handle With Care”. The packing is strong enough to withstand rough handling.

The labels give the item name, quantity, specification, production date, test standard, customer information, and gross and net weight on each box. The shipping marks in the letter 4 inches high indicate the total number of resin bond diamond grinding wheels, the ordinal number of the package, and a number of resin bond diamond grinding wheels inside wooden cases.

 

八、Delivery:

 

Fedex, DHL, UPS, Air freight, by sea or ship to customer's shipping forwarder.

 

九、After-sale service:

 

Any comments, customers can get our reply within 24 hours.

 

Conclusion: manufacturing of high precison and efficiency of resin bond diamond grinding wheels can be achieved by our innovated production system and process control system