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Forged

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!

Steel ingot quality and material confirmation
Steel ingot quality and material confirmation

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. 

Forging process confirmation
Forging process confirmation

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. 

Forging mould confirmation
Forging mould confirmation

DHF Project Director (possesses multi-year Japanese supervision experience) will confirm the mould material hardness and dimensions, as well as mould operation feasibility. 

Forging supervision
Forging supervision

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. 

Dimensions confirmation of forging stock
Dimensions confirmation of forging stock

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. 

Rough finishing supervision of forging stock
Rough finishing supervision of forging stock

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. 

Nondestructive flaw detection
Nondestructive flaw detection

After rough finishing, DHF Project Director (possesses multi-year Japanese supervision experience) will take nondestructive flaw detection to check whether there is any defect. 

Precision work
Precision work

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. 

Dimension inspection
Dimension inspection

DHF Project Director (possesses multi-year Japanese supervision experience) will inspect all dimensions after precision work. 

Joint final inspection
Joint final inspection

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. 

Inspection record offer
Inspection record offer

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. 

Package and transportation inspection
Package and transportation inspection

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. 

Confirmation of loading and shipment
Confirmation of loading and shipment

DHF Project Director will communicate with person in charge and field operators to confirm whether the loading and shipment methods are feasible, simulate the whole process to ensure safety, supervise and guide the whole loading and shipment to avoid danger and product damage.