Solder intensity control and examine on automobile body of each component solder to basically rely on spot welding, spot welding solders in automobile body the effect with rising very main in quality, its quality qualification was opposite the function impact such as truckload and safe, intensity, exterior is very big, solder especially the safeguard of intensity is right truckload and safe the port with having very principal. In addition, other solder method, wait like MIG solder, laser beam welding, its solder quality as much important. It is with some model exemple, chang'an Ford horse introduced system of German BOS 6000 from workshop of the outfit that amount to solder, can be opposite this model is all solder robot and solder dot undertake real time monitoring, already can every solder nods monitoring solder parameter, splatter size, solder quality, OK still monitoring solders frequency of the wear out condition of robot electrode head, burnish is inferior. In addition, the course is produced in solder deliver a child in, to appearance the segment that undertakes intensity examines is very important also. Spot welding examines the method basically has nondestructive to check (Non-Destructive) with ruinous examination (Destructive) two kinds of means, nondestructive examination includes prize check, ultrasonic to examine etc, ruinous examination includes examination of Teardown spot welding and laser beam welding / analysis of MIG solder metallographic. Solder of Nextpage my company installs a few kinds when the workshop uses at present to examine basically the measure is as follows: (1) nondestructive examination: Check of prize check prize basically is product line each labour right but the quality inspection step that prize solder orders. Use tool is cold chisel, hammer, frequency second it is 5 times / class. Can discover relatively simple weld defects normally, the solder that be like empty, weak solder. (2) nondestructive examination: Ultrasonic ultrasonic pledges in ability of metal of dot of solder be detectinged in when transmission, the change that solder orders in-house organization is met to the transmission of ultrasonic the influence with certain generation, through sufferring the exploration of influence degree and state to ultrasonic, can understand solder to nod function and in-house blemish, software picture (see a picture 2) the transmission case that can show ultrasonic in real time, if have unusual, explain solder nods interior to have drawback, for instance: Wave crest chases class to had reduced delay (relatively level off) , explain this solder selects phenomenon of existence low thermosol, wave crest chases class to had been reduced steep (abrupter) , explain this solder selects phenomenon of existence overheat dissolve. Graph 2 ultrasonic detect (3) ruinous examination: Teardown Teardown passes manual carve, pneumatic carve, report carve and hammer to wait destroy all solder dot, welding line to soldering quality undertakes examining. The examination frequency that assigns assembly and white automobile body second for in January. The graph is shown 3 times check for Teardown spot welding, graph 4 for Teardown laser beam welding / analysis of MIG solder metallographic. Laser beam welding of 4 Teardown of plan of inspection of spot welding of graph 3 Teardown / MIG solder metallographic is analysed (eligible MIG solder paragraph) 2.
The workmanship of automobile body of car of automobile body size control is a very complex process, normally by hundreds of model face complex, ply is differ punch or cast a part, after through a few functions differ tool clamping apparatus locates, solder and become; In the meantime, solder process or a kind mutiple level architecture, a few small parts are soldered to make minute of assembly first, cent assembly becomes next worker worker again spare parts. The link intermediate is accordingly numerous, influencing factor is much also, cause automobile body deviation to be controlled hard. But if use,detect scientificly reach analytic method, the deviation of automobile body dimension can get be controllinged effectively not only, can decrease continuously. My company solder holds a workshop for effective monitoring truckload dimension, prevent follow-up worker worker appear assemble difficulty, match undesirable wait for a problem, used advanced Germany ZEISS 3D is measured and Swiss Leica wireless CMM 3D measures a technology, to tool clamping apparatus, cent assembly can accomplish fixed monitoring to assembly, adopt the monitoring measure of SPC, make every measure a place OK measure data to generate I-MR automatically to dominate a picture in workshop website according to the history (see a picture 5) will produce early-warning, achieve seasonable discovery problem, surround an issue ahead of schedule, make improve product of qualification of measure, output. Graph 5 I-MR controls taking one with another of graph last word, chang'an Ford horse amounts to solder to hold the process quality control of the workshop oneself, wait for quality of Ford whole world to control a medium through analysis of PCF, Teardown, metallographic, FPA and CTQ monitoring, use SPC, I-MR, Special Report and website to dog in real time wait for means, rose not only truckload CTQ (cost, time and quality) expression, the product quality that ensured safety of each model white automobile body, essence is accurate, stable effectively still. Pass the improvement in quality that each each entire company workshops, technology segment have, my company quality managed the job to have apparent promotion, the competition ability of product and enterprise will get buildup effectively. CNC Milling