Drilling Of Medium Carbon Alloy Material Din 1 7225 Steel - China

din 1.7225 steel, also known as 42crmo4 or aisi 4140, is a medium carbon alloy steel widely used in industrial manufacturing due to its high strength, good toughness and hardness.

its drilling process requires comprehensive consideration of factors such as material hardness, processing method and cooling lubrication.

1 - characteristics of drilling processing

- **material properties**: the hardness of din 1.7225 steel is hb≤229 in the annealed state, and the hardness can reach hrc 28-36 in the quenched and tempered state.

this places high demands on the performance of machining tools.

- **processability**: in the annealed or normalized state, the processability is good, and the processing difficulty increases after hardening treatment.

2 - preparation before drilling

1 - **workpiece state**:

- **annealed state**: workpieces in the annealed or normalized state are preferred for drilling to reduce tool wear and heat accumulation.

- **hardened state**: special tools (such as carbide drills) are required for hardened workpieces.

2 - **equipment selection**:

- use a high-rigidity drilling machine or cnc machining center to ensure machining accuracy and stability.

- the drill bit is firmly clamped to avoid vibration during machining.

3 - **tool selection**:

- **material**: carbide or hss-co tools, suitable for machining alloy steel materials.

- **coating**: use tin or tialn coated drill bits to improve heat resistance and wear resistance.

4 - **cooling and lubrication**:

- make full use of emulsion or cutting oil for cooling to reduce the friction heat between the drill bit and the workpiece and improve the machining quality.

din 1.7225 steel drilling processing requires adjusting parameters and processes according to the workpiece status and actual requirements to ensure machining quality and tool life.

if there are specific workpiece processing requirements, further optimization suggestions can be provided!

Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
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