Influence of the preparation processes on the residual stresses in PCD and PcBN tools

Figures & data

Table 1. Measurement settings for Raman spectroscopy

Parameter	PCD	PcBN
Laserpower PL	5 mW	10 mW
Accumulation time t	15 s	20 s
Coaddition	2x

Figure 1. Measuring positions Raman spectroscopy.

Figure 2. Raman-spectra of cBN and diamond.

Figure 3. Influence of grinding on PCD peak position.

Figure 4. Influence of grinding on cBN peak position LO-Mode.

Figure 5. Setup and determination of the conversion factors.

Table 2. Conversion parameters C and stress-free wavenumber ω₀.

Cutting material	Conversion factor C	stress-free wavenumber ω0
PcBN	1.14 GPa/cm^−1	1,303.7 cm^−1
PCD	1.36 GPa/cm^−1	1,331.6 cm^−1

Figure 6. Residual stresses converted from Raman spectra after grinding and brushing PcBN.

Figure 7. Mean residual stresses converted from Raman spectra after grinding PCD.