金刚石线环环氧树脂精密切片: 2 毫米 测试数据
Sample testing for a European client (Company Q) · Ring diamond wire cutting process
概述
This report documents precision slicing of epoxy resin using a ring diamond wire cutting system. The evaluation covers equipment and wire selection, cutting methodology, 工艺参数, and the resulting thickness uniformity, 尺寸精度, surface quality and edge integrity of the sliced parts. Test results indicate that a gantry-type ring diamond wire machine, water-based cooling, and appropriately matched process parameters deliver stable, high-precision slicing of epoxy resin.
1. Test Specimen
| 参数 | 数值 |
|---|---|
| 材料 | Epoxy resin |
| 硬度 | approx. 5–6 Mohs |
| 工件尺寸 | 30.0 毫米 (L) × Ø20.0 mm |
| Target slice dimensions | 2.0 毫米 (L) × Ø20.0 mm |
2. 设备与线材选择
Equipment: ESO-GM. In view of the material characteristics of epoxy resin and the requirement to produce 2 mm thin slices, Ensoll selected the ESO-GM gantry-type ring diamond wire cutting system with a top-down vertical feed. The gantry configuration maintains a stable wire trajectory and slice thickness accuracy, and the machine is equipped with a mist-extraction system.
冷却液: 水基切割. 使用水作为冷却介质. It continuously cools the contact zone between the diamond wire and the epoxy resin and carries away part of the heat and cutting debris generated during cutting, reducing the effect of localised temperature rise and debris accumulation on the machining condition. Controlled water supply helps maintain a stable cutting zone.
线材: 全镀层. 选择了全镀层金刚石线. 镀层结构提高了金刚石磨粒与线芯的结合强度，并提供了更均匀的磨粒分布, so the wire maintains a consistent grinding capability and material removal behaviour during cutting. This reduces grain pull-out and wire wear. For the 2 mm thin-slice requirement in epoxy resin, stable wire performance is essential to thickness consistency.
3. 切割方法与设备优势
龙门式切割结构. 龙门结构提供高整体刚性和运行稳定性. The top-down vertical feed helps keep the diamond wire trajectory stable and reduces the influence of changes in cutting force on slice position and dimensional accuracy in epoxy resin. The machine is equipped with a mist-extraction system that promptly removes mist generated during water-based cutting.
智能张力控制. 系统根据切割条件实时调节金刚石线张力，并支持恒张力和变张力模式, 保持线材稳定运转. Well-matched tension control reduces fluctuation in the wire trajectory and limits localised uneven loading and the risk of wire breakage caused by tension variation, which in turn reduces the occurrence of slice defects.
断线记忆. 如果金刚石线断裂或机器异常停止, 系统自动记录当前加工位置及相关操作状态. 更换线材后, 从记录的位置继续切割, 减少因重新定位和重复加工造成的尺寸偏差和材料损失. This improves the continuity of epoxy resin thin-slice cutting and lowers the risk of repeated cutting.
高刚性一体成型铸铁机架. 一体式铸铁机架提供高结构刚性和抗振性能, 减少机床振动和结构变形对加工过程中线轨迹的影响. For the cutting stability and thickness consistency demanded by 2 mm epoxy resin slices, the high-rigidity frame helps damp vibration during the cut and keeps the wire running steadily.
4. 工艺参数与冷却方法
| 参数 | 数值 |
|---|---|
| 线径 (毫米) | 0.35 × 1978 |
| 线速 (毫米/分钟) | 8 |
| 切割宽度 (毫米) | 20 |
| 导丝张力 (N) | 80 |
| 导丝速度 (米/秒) | 21 |
| 线弓时间 (秒) | 60 |
5. Cutting Performance and Results
5.1 TTV测试数据 (单位: 毫米)
总厚度变化 (TTV) was measured using a nine-point grid, dual-probe thickness gauging method on a vacuum-chuck stage. The measurement was applied to epoxy resin slices produced by ring diamond wire cutting. 在测量之前，仪器经过热稳定并使用标准厚度块进行了校准. 标称片厚为 2.000 毫米.
| 样品 | Nine-point thickness readings | T最大值 | T最小值 | TTV |
|---|---|---|---|---|
| S01 | 1.994, 1.997, 2.000 1.996, 2.001, 2.004 1.998, 2.005, 2.008 |
2.008 | 1.994 | 0.014 |
| S02 | 1.990, 1.994, 1.998 1.995, 2.000, 2.003 1.997, 2.004, 2.007 |
2.007 | 1.990 | 0.017 |
| S03 | 1.986, 1.991, 1.995 1.993, 1.998, 2.002 1.996, 2.003, 2.009 |
2.009 | 1.986 | 0.023 |
| S04 | 1.995, 1.998, 2.001 1.997, 2.002, 2.005 1.999, 2.006, 2.010 |
2.010 | 1.995 | 0.015 |
| S05 | 1.992, 1.996, 1.999 1.994, 2.000, 2.004 1.998, 2.005, 2.009 |
2.009 | 1.992 | 0.017 |
| S06 | 1.988, 1.993, 1.997 1.994, 1.999, 2.003 1.996, 2.004, 2.008 |
2.008 | 1.988 | 0.020 |
评估. Nine-point grid measurement was applied to six epoxy resin slices. TTV值为 0.014, 0.017, 0.023, 0.015, 0.017 和 0.020 毫米, spanning 0.014–0.023 mm across the batch, 平均TTV约为 0.018 毫米，在 2.000 毫米标称厚度上. The results confirm good thickness uniformity in epoxy resin slicing.
5.2 Thickness Tolerance Data (单位: 毫米)
厚度公差是根据九点厚度数据推导得出的, 使用 2.000 标称厚度为 mm. The positive and negative thickness deviation were calculated at each measurement position and the results from all six samples were aggregated. 最大正偏差, maximum negative deviation and overall deviation range were determined to evaluate thickness consistency.
| 样品 | 平均厚度 | 厚度偏差 |
|---|---|---|
| S01 | 2.000 | 0.000 |
| S02 | 1.999 | −0.001 |
| S03 | 1.997 | −0.003 |
| S04 | 2.001 | +0.001 |
| S05 | 2.000 | 0.000 |
| S06 | 1.998 | −0.002 |
| 最大正偏差 | — | +0.010 毫米 |
| 最大负偏差 | — | −0.014 mm |
| 厚度公差带 | — | ±0.012 mm |
评估. 以公称厚度为基准 2.000 毫米, the six slices showed mean thicknesses of 1.997–2.001 mm, with the batch average close to nominal. Over all measurement points the thickness deviation ranged from −0.014 mm to +0.010 毫米, 最大绝对偏差为 0.014 毫米.
5.3 表面粗糙度 Ra 数据 (单位: 微米)
表面粗糙度 (Ra) was measured by stylus profilometry on the epoxy resin slices after ring diamond wire cutting. 代表性测量位置取在切割端面的中心及两侧, 使用针型轮廓仪获取表面轮廓数据, 并在每个位置记录粗糙度参数 Ra.
| 样品 | 中心 | 中左 | 中右 | 平均 Ra |
|---|---|---|---|---|
| S01 | 0.62 | 0.68 | 0.65 | 0.65 |
| S02 | 0.58 | 0.63 | 0.60 | 0.60 |
| S03 | 0.72 | 0.78 | 0.75 | 0.75 |
| S04 | 0.55 | 0.61 | 0.58 | 0.58 |
| S05 | 0.65 | 0.70 | 0.67 | 0.67 |
| S06 | 0.60 | 0.66 | 0.63 | 0.63 |
评估. Mean Ra across the six samples ranged from 0.58 自 0.75 微米, 所有单个读数均在 0.55 和 0.78 微米. The narrow spread across the three measurement positions on each slice indicates a uniform surface finish along the cut face.
5.4 边缘崩缺数据 (单位: 微米)
Edge chipping was quantified by optical imaging on a toolmaker’s microscope. Specimen edges were cleaned before measurement and the magnification and measurement scale of the instrument were calibrated. The slice edge was then inspected under the microscope, identifiable chipping defects were located and measured at four points per sample, and the maximum value was retained.
| 样品 | Point 1 | Point 2 | Point 3 | Point 4 | 麦克斯. chipping |
|---|---|---|---|---|---|
| S01 | 4.2 | 4.8 | 5.3 | 4.6 | 5.3 |
| S02 | 3.8 | 4.5 | 4.9 | 4.2 | 4.9 |
| S03 | 5.6 | 6.3 | 7.2 | 6.5 | 7.2 |
| S04 | 3.5 | 4.1 | 4.6 | 3.9 | 4.6 |
| S05 | 4.8 | 5.4 | 6.1 | 5.2 | 6.1 |
| S06 | 4.3 | 5.0 | 5.6 | 4.7 | 5.6 |
评估. Toolmaker’s microscope inspection of the six epoxy resin slices gave maximum chipping values of 5.3, 4.9, 7.2, 4.6, 6.1 和 5.6 微米, with an overall maximum of 7.2 微米. S04 showed the best edge integrity, and S03 the largest chipping at 7.2 微米.
6. 结论
The good results obtained in this high-precision slicing trial of epoxy resin stemmed mainly from the combined effect of a purpose-built cutting machine, the cooling method, and correctly matched process parameters. Epoxy resin is a polymer material, and its machining behaviour depends on the resin formulation and cure state. During ring diamond wire cutting the material is acted on continuously by the abrasive grains, and cutting load, wire condition and process parameters together govern the quality of the slice.
Equipment. An ESO-GM ring diamond wire cutting system was used. The machine provides good overall structural rigidity and running stability and gives reliable mechanical support for workpiece clamping and continuous wire travel. Coordinated control of the feed mechanism and wire running condition keeps the diamond wire on the programmed path throughout the cut.
冷却. Water-based cutting was adopted. Continuous grinding generates friction heat in the cutting zone, and localised temperature rise can affect the machining state of the material. Continuous water supply cools the contact area between the wire and the workpiece, carries away part of the cutting debris, and reduces the effect of localised heat accumulation on the material surface.
Process parameters. 导丝速度, feed rate and other key parameters were matched to the properties of epoxy resin and to the target slice thickness. Parameters were set to maintain stable wire travel and continuous material removal, avoiding feed rates high enough to raise localised cutting load, or a parameter mismatch that would degrade slice quality.
总体. Taken together with slice dimensional accuracy, thickness tolerance, 表面粗糙度 (Ra) and cut-edge quality, the combination of the ESO-GM ring diamond wire machine, water-based cutting and appropriately matched process parameters provides stable material removal and effective slice quality control for epoxy resin.
