PTJ Manufacturing Shop

PTJ Manufacturing Shop

What is precision machining- PTJ Manufacturing Shop

The precision of modern precision machining and its surface finish are higher than traditional processing methods.Read about what the precision service and etc.Precision machining processes include precision miiling and cutting (such as diamond boring, precision turning, wide-blade fine grazing, etc.) and high-gloss and high-precision grinding. Precision machining precision is generally 10~0.1μm, tolerance class is above IT5, and surface roughness Ra is below 0.1μm.

Precision machining is the process of cutting a very thin layer of metal on the surface of a workpiece with a high or low cutting speed, a very low cutting depth and a feed with high precision and rigidity. Obviously, this process can significantly improve the machining accuracy of the part. Since the residual area of the cutting process is small, and the adverse effects of cutting force, cutting heat and vibration are eliminated to the utmost extent, the surface deterioration layer left by the previous process can be effectively removed, and the surface after processing is basically free of residual pull. The stress and roughness are also greatly reduced, which greatly improves the quality of the machined surface.

We have over 10 years’ experience in die casting and cnc machining, and we can guarantee you of high-quality parts. We will be your partner for all your machining, casting and finishing requirements. Get in touch with use to discuss your needs.

High-precision grinding also requires high precision and rigidity of the machine. The grinding process uses a finely-trimmed grinding wheel to produce multiple contoured micro-cutting edges on each abrasive grain with a small grinding depth. Under proper grinding pressure, the fine chips are cut from the surface of the workpiece plus the sliding of the micro-cutting edge in the micro-cutter state, the pressing and smoothing action and the friction polishing effect of the multiple feed-free grinding stage. In order to obtain a high-gloss surface with high processing precision and good physical and mechanical properties. In summary, the precision machining process can improve the machining accuracy and surface quality of the workpiece.

Milling Processes
Alloy Steels
Bar Stock
Cst Iron
Stainless Steel
Steel Forgings
Equipment Used
CNC Vertical Machining Centers
CNC Horizontal Machining Centers

Machinery Axes
Up to 72 in
Up to 30 in
Up to 30 in
Production Volume
Medium Volume
High Volume

At present, the application of precision and ultra-precision technology in China is no longer limited to a few sectors such as defense defense and aerospace. It has expanded to many areas of the national economy, and its application scale has also increased significantly. Computers, modern communications, film and television communications and other industries now require sophisticated, ultra-precision processing equipment as a supporting condition for their rapid development. Precision and ultra-precision machining of computer disks, video recorder heads, multi-face prisms for laser printers, photoconductors for copiers, etc., are all efficient and high-volume automated production methods.

PTJ Machining Capabilities

Automatic Bar Machining capacity for parts from 1/16" to 2 5/8”
CNC Turning – CNC multi-axis machining centers for superior speed & flexibility
Custom Machining - expert machined components delivered on time
Multi Spindle Machining- Davenport, Euro turn, New Britain & Acme Gridley
Screw Machine Products – precision components from a broad variety of materials & Equipment
Swiss Machining – micro-parts to 1-1/4 round diameter providing speed, high capability including precision tolerances and specialized finishes
High Volume Machining – Specialized in machined parts exceeding 1,000 pieces up to millions of pieces for optimum efficiency
CNC Milling - Machining from bar stock, plate or block metal using up to 3 axis of motion
5 axis (11 axis) Machining – Multi Axis Multi spindle technology for completing complex parts efficiently in one operation. C=0 sampling plan & equipment versatility provide one stop shop capability for a variety of applications

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