Used to remove material from internal cylindrical surfaces to improve part geometry or produce a finer surface finish, honing is performed at a much slower speed than is typically used in precision grinding.
The cutting action is achieved by a rotating hone, or stone, which is bonded with a very fine abrasive grit and mounted on a metal mandrel. Rather than being clamped in place, the workpiece is fixed to allow floating and prevent distortion that would result in an oval rather than round hole.
The hone is rotated in a controlled path over the surface of the part. In some cases, a machinist might move the workpiece back and forth over the rotating hone, ensuring that the part is floating rather than being pressed against the hone - again, to avoid an oval hole.
With a horizontal honing machine, the workpiece may be held in a self-aligning fixture while the machine controls the speed and length of the stroke. The hone is hydraulically or mechanically expanded until the desired hole diameter is achieved.
In addition, a cutting fluid must be used. The purpose is threefold: to clean small chips from the work area, to cool the workpiece and hone, and to lubricate the cutting action.
Lapping is used to achieve surfaces that are very flat and smooth, as well as to finish round work, such as precision plug gages, to very tight tolerances.
The lapping process is more gentle than honing and removes much less surface material. Therefore, the workpiece should be as close as possible to final size - achieved, for example, through double-disk grinding - because lapping typically removes only 0.0005" to 0.005" (0.0127 mm to 0.127 mm) of material.
Unlike honing, lapping uses fine-grained, loose abrasive particles suspended in a viscous or liquid base rather than a bonded abrasive stick or stone. The lapping process involves passing the workpiece between one or two large, very flat lap plates along with the abrasive suspension.
With lapping, close attention is paid to controlling every detail. This includes the speed of the plate(s), the pressure on the workpiece, the size and type of abrasive used, the feeding method, and the plate temperature.
Internal Grinding,Honing Machine Parts,Honing The Inner Hole,Honing Cylinder Liner Dayue Precision Technology , https://www.dayuechn.com
Material
Free Cutting Brass Material Composition as per customer requirement
Stainless steel, Aluminum, Carbon steel, or other specified material type
Size and Length
Begins from M2 or equivalent threads and up to any size
as per custom design or requirement
Threads
ISO Metric (MM Threads)
BA, BSW (Inches), UNC, UNF or
Any as per custom design
Finish & Coating
Natural, Nickel Plated, Tin Plated brass inserts or any coating
as per customer specification.
Tolerance
0.01mm
Application
Laptops plastic shell, plastic shell desktop computers, GPS plastic shell,
routers plastic shell, ABS, Aluminum, Fiberglass, Rubber,
Thermalplastics, Injection Molding
Machining equipment
heading machine, threading machine, CNC Milling & turning machine,
general milling & turning machine, grinding machine.
Special Features
Threads as per International Go & Not Go Standards.
Deep Groove for maximum Pull out Resistance.
Inner Diameter (I/D) after Threads with very close tolerance
to prevent unnecessary flush to enter into the brass inserts.
Knurling Available:
Diamond
Straight
Unidirectional
Honing Process
Lapping Process
Trademark: Royals Technology
Origin: Qingdao
Trademark: Royals Technology
Origin: Qingdao