Forged Casting Disadvantages:
1.A mechanical performance than forgings (coarse microstructure, deficit, etc.)
2 sandy casting, single-piece, small-batch, labor intensity.
3.castings unstable quality, process more complex factors, easy to produce many defects.
Since casting the above shortcomings so I strict accordance with technical requirements for more details of the various processes throughout the monitoring and inspection, to ensure product quality, to provide safe, reliable and secure products!
DHF Project Director (possesses multi-year Japanese supervision experience) will confirm the steel ingot manufacturer and type, check whether the proposed forged ingots are vacuum degassing, inspect the material component and take UT detection, so as to prevent quality trouble and avoid unnecessary loss.
1. DHF Project Director (possesses multi-year Japanese supervision experience) will confirm whether the forging process requires mould or mould type, define allowance and dimension of forging stock, whether the operation flow is feasible;
2. Confirm the heating mode and temperature, initial forging and finish forging temperature to avoid defect. Check whether the quenching and tempering treatment and finnal heat treatment has undefined standards to prevent default.
DHF Project Director (possesses multi-year Japanese supervision experience) will confirm the mould material hardness and dimensions, as well as mould operation feasibility.
DHF Project Director (possesses multi-year Japanese supervision experience) will supervise the whole forging process inc. heating time, outlet temperature, initial and finish forging temperature, elongation and jumping up to ensure forging quality. Additionally, he will check the forging proportion and forging size to ensure the gradual cooling and the whole quality of forging pieces.
DHF Project Director (possesses multi-year Japanese supervision experience) will take detailed dimension inspection after complete cooling of forging stock. The manufacturer will be required to solve any troubles about insufficient allowance if necessary.
Before rough finishing, DHF Project Director (possesses multi-year Japanese supervision experience) will confirm initial finishing dimensions with operators, provide concrete size data of blanket, discuss the optimized finishing process to prevent insufficient allowance of precision work.
After rough finishing, DHF Project Director (possesses multi-year Japanese supervision experience) will take nondestructive flaw detection to check whether there is any defect.
DHF Project Director (possesses multi-year Japanese supervision experience) will confirm the finishing process and equipment before precision work, negotiate with chief person and field operators to define data and requirements. He will check each processing part and quality to prevent precessing mistake.
DHF Project Director (possesses multi-year Japanese supervision experience) will inspect all dimensions after precision work.
After finishing the products, DHF Project Director, Chief QC Director and QC personnel of manufacturer will take final inspection jointly with clients to ensure no defect of products.
After inspection, DHF Project Director will offer detailed inspection records (for example: steel ingot material quality certificate, records of dimension inspection, rough finishing inspection, detection, heat treatment, precision work, roughness inspection, hardness inspection and package) to facilitate future equipment maintenance and repair.
DHF Project Director (possesses multi-year Japanese supervision experience) will take product package and loading inspection after joint inspection to prevent product damage during transportation resulted from improper package and loading methods.