A convincing new generation of tools

For machining cavities and grooves on the workpiece, Hengcheng chose a solid carbide milling cutter with a special length. When machining the intermediate partition between the hinge 

plates, the cycloidal milling cutter showed its strong advantages. It not only has a short machining time, but also has excellent heat dissipation. In full-depth cavity milling, the machined hole 

wall is extremely straight and the surface is reflective like a mirror. In the test, we even milled the hinge plate on a wall thickness as thin as 3 mm without offset or vibration. When machining 

titanium alloy workpieces, excellent cooling technology is essential to help the heat generated be discharged. In order to ensure that the coolant pressure is concentrated on the milling cutter, 

Hengcheng uses a tool holder with an integrated coolant delivery function. Hengcheng has developed a special tool system with an angle head based on an ultra-high-speed drill for drilling 

into the hinge plate from the side. The drill first performs drilling, then removes burrs with the help of the countersunk step at the rear end, and then completes the chamfering process in a 

backward cycle.

The keyway wall is machined using Hengcheng tools, and the full depth can be machined in one cut.

Wire boring on both sides simultaneously

Wire boring technology is the ideal way to obtain the main holes of the suspension. The twelve hinge holes are divided into four groups of three holes each. Initially, the first of these hinge 

plate components is used as a guide hole. The second set of hinge plate components is then machined with these pre-machined holes as a guide. Due to the length of the structural 

component, the machining of hinge plate components 3 and 4 must be carried out from the other side in a mirror-symmetrical manner. Finally, a 685mm long wire boring tool with a diameter 

of 17mm is used. It is equipped with two adjustable blades and is guided in a guide sleeve between the hinge plates. The first cutting edge is responsible for rough machining, thereby 

equalizing and eliminating any deviations that may have occurred due to pre-machining. Subsequently, the finishing end hole with a quality level of up to H7 can be directly machined by the 

second cutting edge. 1.5m long workpiece, wire boring from both ends at the same time.

Drill, countersink and back deburr a fastening hole using an angle head.