Cutting Tool Technology Industrial Handbook by Graham T Smith 4 potx

... combination of materials that constitute the cutter’s tool edge. Today, manufacturers of tooling have a strategy for continuous improvement with varia- tions in both tool matrices and coatings being ... stability of the workpiece -tool- machine set-up, other factors that could aect geometry selection include: whether con- tinuous, or intermittent cutting occurs, any tendency towar...

Ngày tải lên: 21/06/2014, 21:20

... factors, pos- sibly the most important one is that the swarf should ow smoothly away from the cutting area, as with the latest chip-breakers tted to today’s cutting inserts, chips can be readily ... Chip-breaking Technology  consistent manner (3). It was found with this work- piece material in an experimental cutting proce- dure, that the tangential cutting force component,...

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... Vibrational tendencies – aecting both the ma- chined surface texture and shortening tool life. Chip formation and its resultant morphology, is not only aected by the cutting data selected, but ... operations with the same tool, together with many other combined proled features. All of these opera- tions make signicant demands on the adaptability of the cutting insert’s geomet...

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... conventional twist drill is depicted in Fig. 44 a. From this illustration two dis- tinct cutting regions can be established: rstly, the main cutting edge, or lips; secondly at the intersection of the ... worth noting that the rigidity of a tool such as a drill will decrease by the ‘square of the distance’ 5 . erefore it follows that the greater the drill penetra- tion into the...

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... cutting forces generated are balanced, not with respect to the cut- ting edges – as is the situation with Twist drills – but invariably, by pads that are situated at 90° and 180° to that of ... in the ute as the chip attempts to exit the deep-drilled hole. Notwithstanding the problems associated with BUE, which hinders the tool s ability to break chips. Coolant control and its .....

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... manufactured as solid one-piece tools, where the cutting edge was ground to the desired geometry by the skilled setter/operator, which meant that their useful life was to some extent restricted. ... considerably improved. 41 ‘Qualied Tooling’ , refers to setting the tool s osets, with all the known dimensional data for that tool, allowing for ease of tool presetting and ecie...

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... such, the slug is free to move out-of-phase with the cutting conditions, dictated by the boring bar’s applied cutting forces, thereby the onset of chatter will be potentially ‘cancelled out’. the ... are: • High temperatures in the cutting zone – necessitat- ing high temperature resistant and thermally-sta- bility of cutting insert materials, • Cutting force magnitudes are bo...

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... is to only turn the tool in the cutting direction and, never reverse it (e.g. is is the standard practice in cutting a thread with hand taps), as the reamer’s cutting edges will immediately ... with straight utes are usually utilised to ream blind holes, but with the absence of chip space at the bottom, this means that swarf must be evacuated by the utes. For virtually all o...

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... calculated to the outer di- ametral dimension of the part feature to be machined. Solid post-drilling tooling can usually be operated at higher cutting data to that of their modular tooling counterparts. ... Boring Tools get … Interesting. Cutting Tool Eng’g, 34 37, Dec. 20 04. Hanson, S. Cutting the Hard Stu Right. Manuf. Eng’g., 179–187, May 2005. Inada, S. et al. On a Metho...

Ngày tải lên: 21/06/2014, 21:20