Part design considerations

Update:2017-10-24

   First, consider the manufacturing lot of the part. (If you make a part of a large number of parts to take full account of the machine fixture used in positioning benchmarks, process holes and other "redundant" factors.
   Second, consider the characteristics of the molding method of the part. (Such as a high-speed rotation of the disk parts, when the use of casting molding, because there will inevitably be loose tissue or porosity and other defects, and such process characteristics do not carry out the latter part of the dynamic balance will inevitably lead to high-speed operation in the state Large centrifugal force, the indirect occurrence of bearing heat, abnormal sound, short life and so on.For example, for medium carbon steel or high carbon steel raw materials for gas cutting to obtain parts blanks are prone to cutting "was" quenching phenomenon. )
   Third, consider the raw material properties of the part. (Such as a sheet of thin plate parts, we first think of using iron plate material, of course, take the material can be laser cutting / water cutting / flame cutting / or even wire cutting / or stamping. Metal processing editor to remind you that this should be combined The best economic efficiency of the parts to decide, of course, whether it is for the plate or wire, whether it is used to cut the cutting or flame or laser or water cut.We should pay attention to the nesting problem (the pursuit of maximum material utilization)
   Fourth, consider the parts of the processing fixture. (For single-piece, small-volume manufacturing should be designed to avoid some of the general machine can not be processed, you must use a special fixture for production and processing of the situation.)
   Fifth, consider the manufacture of the parts of the tool. (In the design of parts to be fully considered in the market can be purchased and suitable for their own machine tool clamping and use of the tool. Try to avoid custom non-standard tool. This part requires a little knowledge of some of the national standards of tools, such as your parts Designed a hole, and this hole is a relatively high degree of cylindricality and finish requirements.Often our hole for the process is drilling or hole - reaming or boring - or internal grinding. But your hole diameter If it is not close to the first or second series of tools, it will become very troublesome to see if the corresponding tool reamer is not available in the standard tool market.
   Sixth, consider the processing range of the machine for processing this part. (The machine has a fixed range of processing range parameters such as C6132 that horizontal lathe can achieve the maximum part of the rotary diameter is 320. M7130 * 1000 on behalf of the horizontal axis of the surface grinding machine can be a grinding grinding width is 300, the length is 1000 Therefore, the design of the parts should be combined with these machine parameters to consider the processing machine can be clamped or machinable.
   Seventh, consider measuring tools. (Part of the manufacturing requirements to complete the application of a common gage, measuring tools to measure.For example, the design of a group of cones, you do not choose the standard Mohs series or commonly used similar to 7:24 taper or 1:50, such as taper, rather than To get a 7:23 or 1:47 taper, then in the standard gauge market can not buy a common standard cone and cone sets.Of course, if the use of quadratic projection detection or coordinate detection of the parts are not in this situation constraints Within the category.)
   Eighth, consider the heat treatment requirements. (For some newly arrived friends, in dealing with some of the need for high wear resistance or the need for good overall mechanical properties of the parts, the drawings tend to appear such a technical requirement, material Q235 - hardness after quenching HRC60, and To ensure that the hardenability and hardness uniformity. Material 45 # steel - quenched and tempered up to 58HRC. For such phenomena, metal processing editors can only suggest that you go over the metal material and heat treatment knowledge.http://www.hyrongwei.com