Automotive／Steering
Engine
Steering
For Finishing Valve Guide Hole / PCD Rotating Tool
For Machining Steering Parts / PCD Rotating Tool
Aluminum parts for steering housing must be not only lightweight, but also labor-saving and highly functional. There are many machining areas and its shapes are becoming complex as numbers of sensors and assist devices are incorporated. Therefore, productivity improvement by machining time reduction is required. We contribute to productivity improvement by realizing high quality machining at high feed rates through our unique tool design and process-integrated design. ・We propose designs that take into account weight reduction and dynamic balance, since large-diameter hole finishing is often required. ・Process integration can be expected through multi-step hole finishing and design combining different cutting tools, such as taps. ■Features
Valve guides are made of sintered alloy or cast iron from the viewpoint of sliding properties and durability of the valve shaft moving at high speed. Finishing valve guide holes with carbide reamers hinders productivity due to low wear resistance, which deteriorates machining accuracy and causes frequent tool changes. On the other hand, diamond reacts with iron, but by reducing the machining speed, it can be applied and the issues (machining accuracy and productivity) that cemented carbide reamers face can be cleared. We will propose blade design suitable for the required grade and machining conditions. ・PCD with excellent abrasion resistance is used to achieve stable processing quality. ・We propose the design of a cutting tool suitable for the quality of the workpiece. ■Features
Touring Example of PCD Rotating Tool for Machining Steering Parts
■For Machining Convex + Seat Surface 1-Flute PCD Endmill with Interchangeable Cutting edges
Unequal cutting edge design is adopted to suppress Chatter and improve roundness. ■5-Flute Unequal Arrangement PCD Reamer
This endmill is used for machining convex and seated surfaces. The insert insert tip specification allows for fine adjustment of the convexity diameter and reduced initial cost in cutting edge damage.
Cutting tool design that takes into consideration both multi-flutes and rigidity. High feed rate reduces machining time. ■4-Flute PCD Reamer for Finish Hole Drilling
Tool for rough/semi-finish. ■1-Flute PCD Reamer for Machining Pilot Holes
Cutting edges at each step are not equal in number, and uneven flute spacing prevents resonance during machining and realizes high quality hole finishing. ■4-Flute + 5-Flute Unequal Arrangement PCD Reamer
The internal blade design enables interpolation cutting and reduces machining time by shortening the distance for machining cylindrical sections. ■4-Flute Internal PCD Endmill for Machining Cylindrical Sections
High quality machining is achieved by the chip evacuation effect of the multi-flutes and twist flutes. ■4-Flute Twisted PCD Reamer for Finish Hole Drilling
The leading edge is fitted into the pilot hole to ensure a guiding effect and achieve high precision hole finishing. ■1-Flute PCD Reamer for Finish Hole Drilling
Combination Tools Reduce Work Load (Tool Change Frequency)
Designed to integrate boring on the hole finishing side and back side. High coaxiality machining of the hole finishing side and back side boring is realized. ■Process Integration (Counterbore on Back Side + Hole Finishing Reamer)
Three processes are integrated into a single tool to reduce tool change time and achieve high coaxiality machining. ■Integrated Process (Tapping + Grooving + Hole Finishing Reamer)
xxxxxxx Example of a Process-Intensive
Example of Machining Time Reduction Effect by Process-Integrated Tooling ■Hole Finish + Seat Surface ■Ring Groove ■Taps ■Tool Change
Angle of View：270.000°
40
Straightness（Z）SOA = 2.2 µm
Magnification: same size
Cylindricity = 1.7 µm
Roundness P - P = 0.6 µm
（34）
30
Efficiency Improved 2 Times
Straightness 2.2 µm
Cylindricity 1.7 µm
Roundness 0.6 µm
15
20
（17）
0
8 8 3
Process Integration 6 3 8
Tap Shape
10
T-Slot Cutter
Reamer
0
Counterbore Cutter
Conventional Tool
013
014
Made with FlippingBook flipbook maker