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Product Overview

END CHATTER! New Anti-Vibration Boring Bars

Bhop gives us all the specifics on the new line of Anti-Vibration Boring Bars available now at HaasTooling.com. These boring bars are the ideal solution for deep-hole boring applications. They are designed to reduce vibration, minimize chatter, improve surface finish, and enable precision boring at extreme overhangs (7xD to 10xD).

Modular Boring Bars / Internal (ID) Turning Tools

Modular Bolt-on Boring Heads, available in a wide range of styles and sizes, are designed with a serrated bolt-on locking interface to ensure a secure and reliable connection. These heads are cost-effective and offer excellent flexibility for high-volume production. Simply swap the bolt-on boring head, there’s no need to replace the entire boring bar. Integrated through-tool coolant ensures optimal lubrication and chip evacuation, enhancing tool life and overall performance.
Modular Boring Bars are a popular alternative to conventional solid one-piece indexable boring bars. Consisting of a two-piece assembly – a bolt-on head and a boring bar body – modular boring bars offer greater flexibility in setup and can deliver better performance compared to traditional boring bars. With the ability to swap out any compatible bolt-on serrated head, tasks such as profiling and linear boring can all be performed without the need to switch to an entirely different tool.
Modular Boring Bars, available in various styles and sizes, are designed with a through-tool coolant and a serrated bolt-on locking interface to ensure the most optimal tool securement and performance. Offering overhangs ranging from 5xD to 10xD, with the option for anti-vibration damping features. Anti-vibration damped boring bars are equipped with an internal pre-tuned damping system engineered to deliver superior performance and reduce chatter during operations.

Anti-Vibration Damped Boring Bars / Internal (ID) Turning Tools

Anti-Vibration Damped Boring Bars are a revolutionary series in the industry, featuring advanced internal pre-tuned damping technology. These boring bars are the ideal solutions for deep-hole boring applications. Constructed of steel, they are designed to reduce vibration, minimize chatter, improve surface finish, and enable precision boring at extreme overhangs (7xD to 10xD).

 

With interchangeable modular bolt-on heads, Anti-Vibration Damped Boring Bars offer exceptional flexibility to streamline productivity. Their modularity allows for quick and easy changes between compatible head styles, without compromising performance – while also reducing the need for excess inventory.

 

  • Anti-Vibration Damped boring bars allow overhangs from 7x shank diameter to 10x shank diameter, compared to 5x shank diameter for carbide and 3x shank diameter for steel.
  • Recommended to adjust the boring bar to the shortest possible length, based on desired cut depth; this will provide maximum rigidity.
  • Select the largest possible shank diameter (with space for chip evacuation); this will provide the best performance from the tool.
  • For optimal clamping force, the use of split bushing is recommended. 3xD to 4xD clamping length is recommended.
Features

Modular Boring Bar

Conventional Boring Bar

Cost

Lower (Long-Term)

Higher

Set-up Time

Lower (Long-Term)

Higher

Performance

Higher
Lower

Inventory

Lower
Higher

*Modular Boring Bars allow for quick set-up time after initial indicating, with the ability to change bolt-on heads for maximum flexibility while minimizing inventory. With options like Anti-Vibration dampened systems, modular boring bars allow for the best performance per part. *

How to choose Modular Boring Bar Body

 

  1. Determine your Shank Diameter [øDMM]
    To have the best performance out of your boring bar; Determine your shank diameter to have the best Diameter-to-Stick out ratio. Selecting the largest shank diameter possible based on workpiece is recommended; chip evacuation space is needed to avoid chip packing.

  2. Determine what type of boring bar you need.
    Carbide and Anti-Vibration boring bars are commonly used when longer stick out is required.

  3. Determine Hub Diameter [øC]. 
    Determining Hub Diameter can be done before or after selecting your preferred Bolt-on Head. Refer to parametric drawing to determine what diameter hub is needed for your application. 

  4. Determine Overall Length [OAL] required.
    Overall Length is very important feature that is overlooked. The ideal Overall Length for a boring bar is determined by the job requirement, while also including 3xD to 4xD for bar clamping for optimal rigidity. 

 

 

How to choose Modular Bolt-On Head

 

  1. Determine your Minimum Machining Diameter [øD].
    To have the best performance out of your boring bar; Determine your minimum machining diameter to have the best Diameter-to-Stick out ratio. Utilizing the largest shank diameter possible based on workpiece is recommended; chip evacuation space is needed to avoid chip packing.

  2. Determine Insert Style.
    Insert styles range from 80˚ Rhombic, 55 ˚ Rhombic, 35 ˚ Rhombic, and T style Inserts; Inserts can also be determined by Inscribed Circle Diameter [IC] and Cutting-Edge Length [L10]. Different types of jobs require different types of inserts, from roughing, finishing, and profiling. Select which is best for your application.

  3. Determine desired clamping Style.
    Clamping styles are commonly associated with different types of tool holding. See chart for best comparison.

  4. Determine Hub Diameter [øC].
    Determining Hub Diameter can be done before or after selecting your preferred Bolt-on Head. Refer to parametric drawing to determine what diameter hub is needed for your application. 

Linear cutting     →     Copying/Profile

Linear Machining

Copying / Profile Machining

Stronger Cutting EdgeBetter Access to features
Higher Cutting forcesLower Cutting forces
Higher Material Removal RateWeaker cutting edge
More VibrationLess Vibration

Insert Styles

C-Style Inserts – 80° Rhombic

 

For external machining and facing. The large point angle is very rigid, and good for rough machining. This is the most commonly used insert.

V-Style Inserts – 35° Rhombic

 

The smaller point angle of this insert is more versatile for finishing and detail work, but it has less cutting-edge strength than other geometries.

T-Style Inserts – 60° Triangle

 

For internal machining. The 60° cutting angle provides medium cutting-edge strength that allows for both ID roughing and finishing applications.

D-Style Inserts – 55° Rhombic

 

The smaller point angle of this insert is more versatile for finishing and detail work, but it has less cutting-edge strength than other geometries.

W-Style Inserts – 80° Trigon

 

This insert has 3 cutting edges per side. The 80° cutting angle provides high cutting-edge strength for roughing, but the depth of cut is limited by the short cutting edge.

LARGE NOSE ANGLE
• Stronger cutting edge
• Higher cutting forces
• More vibration
• Higher feedrates

 

SMALL NOSE ANGLE
• Better access to features
• Lower cutting forces
• Weaker cutting edge
• Lower vibrations

Insert Grades

 

Choose the grade that best matches your application and workpiece material.

 

Decoding Haas Grades: HTP15

BRAND | H | Haas

 

APPLICATION | T | Turning

PRIMARY WORKPIECE MATERIAL

 

P

 

   P – Steel                              

   M – Stainless Steel             

   K – Cast Iron                       

   N – Non-Ferrous                

   S – High-Temp Alloys        

   H – Hardened Materials    

   U – Universal Machining   

   

APPLICATION RANGE

 

15

 

10 – Uninterrupted

15 – Light Interrupted

20 – Medium Interrupted

25 – Medium Interrupted

35 – Heavy Interrupted

Wear Resistance               10   15   20   25   30   35           Toughness

SMOOTH SURFACE

 

Smooth Cut Pre-Turned

MEDIUM TO ROUGH SURFACE

 

Lightly Interrupted

ROUGH SURFACE

 

Heavily Interrupted

Turning Inserts
Turning Inserts
Turning Inserts
Turning Inserts
Turning Inserts
Turning Inserts
Turning Inserts
Turning Inserts
Turning Inserts

CCET Insert Grades

Turning Inserts
Turning Inserts
Turning Inserts

Chipbreakers

HAL

 

For cost-effective machining of aluminum, non-ferrous metals, and plastics. Extremely sharp cutting edges result in optimum part finishes with low cutting forces and short chips.

HFS


For finish turning operations. Ground periphery with positive cutting edge ideally suited for high-temp alloys. Micro-finished edge on the ground periphery adds just a slight hone for improved edge integrity and reliability.

HMP


For medium to rough turning operations, with reduced cutting forces and improved chip control for high feed rates. Suitable for high metal removal rates and spindling applications.

HMU


For medium turning operations. Medium universal geometry with a soft cutting action due to its positive profile. Versatile application range well suited for boring operations and turning unstable components.

HUM


For medium turning operations, with a soft-cutting chipbreaker. Used in applications producing varying chip sections, such as profile or copy turning. Good dimensional accuracy. For soft steel materials and stainless steels.

AL


For finish to medium turning operations. High rake angle and a low resistance cutting edge for extended tool life in continuous cutting of aluminum, non-ferrous metals, and plastics.

HFF


For finish turning operations, producing smooth, accurate surfaces. Very good chip control, especially at low depths of cut.

HMA


For finish to rough turning operations. Flat-top geometry for machining cast iron.

HMR


For light to medium rough-turning operations. Excellent choice for steels, difficult-to-machine high-alloy titanium, and aluminum materials. High strength to deal with heavy chip deformation.

HRH


For medium to rough turning operations. Outstanding chip control. High edge strength for interrupted cuts, forging skin, or scale. Preferred for all cast iron, such as gray, malleable, and nodular.

HUR


For rough turning operations. Improved chip forming and coolant flow for increased tool life. Positive geometry reduces cutting forces and improves depth-of-cut notching resistance. Suitable for stainless steel and smooth machining of steel.

HSF


For finish hard turning operations. Excellent chip control with a unique anti-vibration tip structure. Good dimensional accuracy. Excels at cutting high-hardness materials between 40-62 HRC.

HFP


For finish to medium turning operations, with optimal chip control over a wide range of cutting conditions and workpiece materials.

HML


For finish to medium turning operations, with a negative, stable cutting edge.

HMS

 

For medium turning operations. Primarily used with high-temp materials. Utilizes a micro-finished edge preparation to increase edge toughness.

HUF

 

For finish turning operations, with a positive cutting edge for reduced cutting forces and superior surface quality.

HM

 

For medium turning operations. Excellent chip control in various conditions for increased productivity. Variable land reduces cutting loads at high speeds and feeds, promoting stable tool life.

Cermet Chipbreakers

HVB


For finish turning operations. Excellent chip evacuation and control with various depth of cut, especially in copying and internal machining. Superior tool life due to improved edge design and low cutting resistance.

HVL

 

For finish turning operations. Improved chip control on tough materials and decreased cutting load in external, facing, and copying applications. Predictable and stable cutting edge for excellent surface finish.

Clamping Styles

 

* For multi-lock holders: Rotate the eccentric lock pin counterclockwise until the insert drops on, and then rotate the eccentric pin clockwise to secure the insert against the side of the holder. Install the top clamp to hold down the insert.

M – Multi-Lock System*

 

• For negative-style inserts
• Lock pin and top clamp provide rigid clamping
• Can use a wide variety of insert styles

P – Lever-Lock System

 

• For negative-style inserts
• Lock pin and top clamp provide rigid clamping
• Can use a wide variety of insert styles

S – Screw-On System

 

• For positive-style inserts
• Top clamping by screw for screw-on inserts
• Compact design for reliability
• Does not interfere with chip flow

D – Double-Clamp System

 

• For negative-style inserts
• Powerful single-lever screw clamping
• Spring design releases clamp automatically
• Optimized for chip flow

M – Multi-Lock System*

 

• For negative-style inserts
• Eccentric lock pin secures the insert against the side
• Top clamp provides rigid downward clamping
• Can use a wide variety of insert styles

S – Screw-On System

 

• For positive-style inserts
• Top clamping by screw for screw-on inserts
• Compact design for reliability
• Does not interfere with chip flow

External Toolholder Code System (ANSI)

 

P S K N R 16

1 Clamping Method of Insert

2 Insert Shape

3 Holder Style

4 Clearance Angle of Insert

5 Hand

6 Height of Shank

 

4 D

7 Length of Insert Cutting Edge

8 Length of Holder

CLAMPING METHOD OF INSERT
INSERT SHAPE
HOLDER STYLE
CLEARANCE ANGLE OF INSERT
HAND
HEIGHT OF SHANK

LENGTH OF INSERT CUTTING EDGE*

 

1: 0.125
2: 0.25
3: 0.375
4: 0.5
5: 0.625
6: 0.75
7: 0.875
8: 1.0
9  1.125
10: 1.250
11: 1.375
12: 1.5

 

* Number of 1/8" of inscribed circle.

LENGTH OF HOLDER*

 

A: 4" long
B: 4.5" long
C: 5" long
D: 6" long
E: 7" long
F: 8" long
M: 4" long
N  4.5" long
P: 5" long
R: 6" long
I: 2.5" long
J: 2.75" long
K: 3.15" long
X: Special

 

* Qualified back and end.