What is die in press tool?

A die is a specialized machine tool used in manufacturing industries to cut and/or form material to a desired shape or profile. Stamping dies are used with a press, as opposed to drawing dies (used in the manufacture of wire) and casting dies (used in molding) which are not.

What is difference between die and punch?

Usually, the punch and die are close to the same dimensions, creating a sheared edge when they meet. A punch that is significantly smaller than the die can be used to produce an extruded hole where the punch displaces the punched material to the sides, forming a tube perpendicular to the punched sheet.

What are the factors to be considered while designing a press tool?

While designing a press tool and selecting the press for a given job, the following factors must be considered :

• Thickness of component.
• Power requirement.
• Kind of operation to be performed.
• No. of operations to be performed.
• Overall work size.
• Speed of operation.

What is a forming die?

Forming dies are used for metal press forming and production after mounting into a press. The die is a metal block used to form materials like sheet metal and plastic. For vacuum forming of a plastic sheet a single form is used.

How does a punch and die set work?

The action of a Punch & Die uses a solid metal piece, the “Punch” located vertically above the “Die”. The Die corresponds in size and shape to the Punch and is secured directly beneath the Punch. The Punch is usually, hydraulically driven to meet the Die.

How do you calculate cutting force in press tools?

Press force = Cutting force +Stripping force =100800 + 20\% 100800 =120960 N =120.960 KN.

What steel are press dies made of?

The standard material used is SKD11. SKS3 is sometimes used in the case of small volume production. SKH51 is used when the size is small, or when toughness is required. Powdered high speed tool steel or cemented carbide are used when wear resistance is required or for large volume production.

How can I learn tool and die?

Start your career as a tool and die maker by earning a high school diploma or GED certificate. Enroll in an apprenticeship or vocational training program to gain on-the-job training in machining, computer-aided design (CAD), computer-aided manufacturing (CAM), and other key job skills.

How does calibration affect the life of a press?

A poorly maintained press decreases tool life. If the die is set up and calibrated properly, its life will be longer than if it is not set up correctly. The die’s location, how much it is offloaded, how accurately the shut height is set, and other setup parameters are critical.

How do you balance a die to the press?

To calculate the balance of the die to the press, you have to take moments about the right-to-left centerline of the die at each station. This will indicate the die’s out-of-balance condition. Then, by repositioning the die’s centerline with the press’s centerline, you can improve the die-to-press balance.

Where is the die load applied in a press?

Where in the press stroke the die load (tonnage) is applied from bottom dead center (BDC) of the press stroke. From this you can calculate the press energy requirement. The distribution of die tonnage over the press bed and slide areas for press deflection.

What affects the life of a power tool?

Even a “jewel of a tool” will have a short life if it is placed into a glorified 200-ton trash compactor. Ram parallelism, the amount of vibration, frame rigidity, the amount the press deflects under load, and press speed all play an important part in the life of a tool. A poorly maintained press decreases tool life.