PCBN scroll-free turning and PSC holder series

1.Background

In general turning, the sprial marks are still left on the machined surface of the rotary body even using the wiper inserts. These marks may cause leakage of working? medium such as lubricating oil in the inner cavity of powertrain products, thus posing quality hazard. Therefore, the mainstream machining method solution includes hard turning finishing supplemented by grinding and polishing on the rotary surface is used to eliminate the subtle?spiral marks.

Worldia makes PCBN scroll-free turning tools for CNC machines, realizing scraping instead of grinding, which eliminates the grinding process, improves machining efficiency and reduces machining costs.

2. Application

Under the premise of sufficient rigidity of machine tools and clamping rigidity of parts, this product is suitable for finishing hardened steel shaft parts, especially for those special assembly and sealing requirements for high acuracy and high finish requirements of the machined parts on the cylindrical surfaces. In addition, this machining method can be extended to the machining of cylindrical, conical and other linear rotary surfaces with a straight generatrix to replace grinding. For example, this product excels in finsh machining for new energy vehicles parts, such as bearing mounting, sealing parts of motor shafts and outer rotor.

3. Features

• Scroll-free turning replaces grinding. During the machining process, a straight edge involves in cutting to scrape the workpiece surfaces, reaching high surface finish, Ra0.1-Ra0.4, and IT5-IT6 machining accuracy.

• High efficiency. As a straight edge involves in cutting to scrape the workpiece surfaces, higher machining efficiency can be achieved under same surface finish with larger feeds.

• Lower cost. Eliminate grinding process to lower the machine and labor cost.

• Tool life improved. During the scraping process, the feed along the Y-axis in conjunction with the rotation of the tool holder compensates for the X-axis, so that the position of the cutting edge involved in the cutting process moves with the feed. As a result, longer edge engages in cutting and? improves PCBN cutting edges utilization. In addition, the contact length between the edge and the workpiece is larger in the machining process, and the average cutting force per unit size of the edge is smaller, which improves the edge tool life.

• Worldia PSC holder for quick tool change. Worldia has developed the matching PSC toolholder series with a special positioning device on the insert and the tool body to fit the specially designed cooling channels, which makes it easy to replace the inserts without adjusting the tool and ensures smooth machining.

• Eco-friendly. PCBN scroll-free turning?could achieve dry cutting, air cooled and wet cutting. It replaces the grinding process and avoids the environmental pollution caused by the use of a large amount of grinding fluid.

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