How to solve 5 daily problems of impacting sample gap pulling bed

Impact sample notch pulling bedIt is an essential equipment during impact testing and is widely used in various fields. Hengsi Shanda Engineers provide customers with some solutions to some problems that they often encounter in their work:

Question 1: The broaching stops.

reason1: Insufficient bed power;

Countermeasure: Use high power to pull the bed.

reason2: Chips are welded, the blade is damaged, and abnormal wear causes the cutting force to increase;

Countermeasures: Re-grind to remove the deposits and damaged areas, and replace the lubricant.

reason3: Changes in workpiece material deteriorate chip performance;

Countermeasures: Check the composition and hardness of the workpiece, and make the lubricant smoother.

reason4: chip blockage;

Countermeasures: Check whether workpieces with longer lengths than the specified length are processed and chips are removed.

Question 2: Vibration occurs during broaching.

reason1: The machine tool and fixture are not rigid enough;

Countermeasures: Increase the rigidity of machine tools and fixtures.

reason2: Elastic recovery after workpiece processing;

Countermeasure: Increase the wall thickness of the workpiece.

reason3: The corresponding relationship between the blade tooth pitch and chip length is not correct;

Countermeasure: add the bracelet and support.

reason4: There are too few blades involved in chip cutting at the same time;

Countermeasure: Check whether workpieces with a shorter length than the specified length are processed. If they are shorter, repeated broaching is required.

Question 3:Impact sample notch pulling bedWorkpiece broaching notch defects.

reason1: Blade defect;

Countermeasure: Re-grind to remove damage.

reason2: Blade bruises;

Countermeasure: Re-grind to remove the wound.

reason3: There is a deposit on the blade;

Countermeasure: Re-grind and remove the deposit and switch to cutting fluid.

Question 4: The broaching surface is not smooth.

reason1: The blade is worn and scratched;

Countermeasures: Re-grinding improves sharpness.

reason2: There is a deposit on the blade;

Countermeasure: Re-grind to remove the deposit and smoother the cutting fluid.

reason3: Blade defect

Countermeasure: Re-grind to remove damage.

reason4: Chips scratch the surface of the workpiece;

Countermeasure: Remove chips and replace lubricant.

Question 5: Large burrs are generated on the broaching surface.

reason1: The cutting performance is degraded due to changes in the material of the workpiece;

Countermeasure: Check the material and hardness of the workpiece.

reason2: The cutting sharpness decreases;

Countermeasures: Re-grinding improves sharpness.

MoreImpact sample notch pulling bedInformation is available at Jinan Hengsi Shanda Instrument Co., Ltd.