刀具成本检测外文翻译(编辑修改稿)内容摘要:

behind it will be covered in Chapter 5. As well as the wear kinds on other inserts investigated in this research. Metal cutting studies focused on tools39。 wear, tool life, and wear mechanisms. However, future research should pay more attention to other factors as well: Wear criterion value set up by the factory system, which basically the tool wear threshold value that suits the factory product. Types of tools used, such as carbide tips and high speed tools. Studying the variation of tool life wear under dry and wet cutting that effect the tool life equation constants (C,n) is useful. This will improve tool life because it also affects the economy of cutting [24]. In order to determine the effect of cutting fluid on the selected wear criterion, relationship between different wear criteria and machining cost for the cutting inserts under HSM must be studied. The value of the tool life constants (C,n) for different wear criteria are extracted and plotted within the ranges listed in table (37). The values of the constants (C, n) extracted from Figure 38A/B, Figure 39AIB, and Figure 310 are shown in tables 38 and 39. Further explanation of the relationship between these parameters and wear criteria will be covered through out the next figures. Figure 311A represents the relationship between `n39。 and wear criterion. As wear criterion increase `n39。 . (a) Log (time) versus Log (speed) at different wear criteria (dry condition). (b) Log (time) versus Log (speed) at different wear criteria (wet condition)Figure 38 Time versus speed at different wear criteria KC313. (a) Log (time) versus Log (speed) at different wear criteri(drycondition). (b) Log (time) versus Log (speed) at different wear criteria (wet condition). Log (time) versus Log (speed) at different wear criteria (dry condition) (b) Log (time) versus Log (speed) at different wear criteria (wet condition). Figure 39 Time versus speed at different wear criteria KC732 (a)Log (time) versus Log(speed) at different wear criteria (dry condition), (b) Log (time) versus Log (speed) at different wear criteria (wet condition) Log (time) versus Log (speed) at different wear criteria (dry condition). Log (time) versus Log (speed) at different wear criteria (wet condition) Figure 310 Time versus speed at different wear criteria KC5010 (a) Log (time) versus Log(speed) at different wear criteria (dry condition), (b) Log (time) versus Log (speed) at different wear criteria (wet condition). Table 37 Ranges of plotted tool life constants. Range Cutting Insert Condition 0 LogT KC313 Dry 0 Log T KC313 Wet 0 LogT KC5010 Dry 0 Log T KC5010 Wet 0 LogT KC732 Dry 0 Log T KC732 Wet Table 38 Wear Criteria versus `C39。 and `n39。 for three cutting inserts (Dry Condition). Wear Criteria (mm) KC 313 KC 5010 KC732 C n C n C n constant constant constant constant constant constant 142 518 630 165 560 964 196 596 1099 238 605 1233 250 612 1399 263 625 1503 282 625 1517 292 630 1577 302 632 1592 313 638 1611 Table 39 Wear Criteria versus `C39。 and `n39。 for three cutting inserts (Wet Condition). KC 313 KC 5010 KC732 Wear criterion (mm) C n C n C n 167 497 187 619 228 610 244 628 267 626 291 619 338 615 303 616 ` 397 618 422 626 values increase for both cutting conditions. In addition, `n39。 values for wet condition is lower than dry conditions up until wear criterion after which `n39。 for wet starts to get bigger. Figure 311B shows `C39。 values versus wear criterion, and reveals `C39。 increases as the wear criterion increases for both dry and wet cutting. However, `C39。 values under wet condition are getting higher than under dry conditions. This proves the increase in tool life by introducing coolant emulsion and by increasing the wear criterion for this cutting tool material during cutting. Next, Figure 312A represents values of `n39。 with respect to wear criterion for KC732 material under dry and wet conditions. As the wear criteria increase `n39。 values increase. Furthermore, wear curve is higher than dry curve. Figure 312B presents a proportional relationship between constant `C39。 values and wear criterion. However, wet `C39。 curve is higher than dry curves, which indicates the benefit of using coolant emulsion for material KC732. This benefit bees more essential by increasing the wear criterion. The higher the `C39。 value。 the higher the tool life bees. Figure 313A shows the effect of introducing coolant emulsion on cutting tool performance. Therefore, the higher `n39。 the lower the tool life is. Figure 313B shows the drop in `C39。 values by increasing the wear criterion and coolant usage。 thus indicating a shorter tool life in wet cutting condition. During the previous curves of K。
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